Standard Lemma guide

lucid

adj · name · noun · 9 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • /ˈl(j)uːsɪd/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • rhymes with -uːsɪd
  • CMU ARPABET: L UW1 S AH0 D Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Clear; easily understood.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adj

Meaning 2

Mentally rational; sane.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

adj

Meaning 3

Bright, luminous, translucent, or transparent.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

name

Meaning 4

A surname from Irish.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

noun

Meaning 5

A lucid dream.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

adjective satellite

Meaning 6

(of language) transparently clear; easily understandable- Robert Burton

Definition source: Princeton WordNet 3.0

Examples

  • writes in a limpid style
  • lucid directions
  • a luculent oration
  • pellucid prose
  • a crystal clear explanation
  • a perspicuous argument

Meaning relationships

Synonyms: limpid, luculent, pellucid, crystal clear, perspicuous

Antonyms: none provided

7

adjective satellite

Meaning 7

transmitting light; able to be seen through with clarity

Definition source: Princeton WordNet 3.0

Examples

  • the cold crystalline water of melted snow
  • crystal clear skies
  • could see the sand on the bottom of the limpid pool
  • lucid air
  • a pellucid brook
  • transparent crystal

Meaning relationships

Synonyms: crystalline, crystal clear, limpid, pellucid, transparent

Antonyms: none provided

8

adjective satellite

Meaning 8

capable of thinking and expressing yourself in a clear and consistent manner

Definition source: Princeton WordNet 3.0

Examples

  • a lucid thinker
  • she was more coherent than she had been just after the accident

Meaning relationships

Synonyms: coherent, logical

Antonyms: none provided

9

adjective satellite

Meaning 9

having a clear mind

Definition source: Princeton WordNet 3.0

Examples

  • a lucid moment in his madness

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Etymology tree Proto-Indo-European *lewk- Proto-Indo-European *-yeti Proto-Indo-European *-éyeti Proto-Indo-European *lowkéyeti Proto-Italic *loukeō Proto-Indo-European *lewk-der. Proto-Italic *loukēō Latin lūceō Proto-Indo-European *dheh1-der. Proto-Italic *-iðos Latin -idus Latin lūcidus English lucid Latin lucidus, from lūceō (“shine”) + -idus.

Perhaps a variant of Lucey.

Across languages

Translations

96 source translations are retained for this English entry.

  • Bulgarian: ясен (jasen) — clear; easily understood
  • Bulgarian: разбираем (razbiraem) — clear; easily understood
  • Catalan: lúcid — clear; easily understood
  • Chinese Mandarin: 清楚 (qīngchǔ) — clear; easily understood
  • Chinese Mandarin: 易懂 (yìdǒng) — clear; easily understood
  • Chinese Mandarin: 清晰 (qīngxī) — clear; easily understood
  • Dutch: lucide — clear; easily understood
  • Finnish: selvä — clear; easily understood
  • Finnish: selkeä — clear; easily understood
  • French: clair — clear; easily understood
  • French: claire — clear; easily understood
  • German: klar — clear; easily understood
  • German: übersichtlich — clear; easily understood
  • German: verständlich — clear; easily understood
  • German: einleuchtend — clear; easily understood
  • German: luzid — clear; easily understood
  • German: deutlich — clear; easily understood
  • Gothic: 𐍃𐌺𐌴𐌹𐍂𐍃 (skeirs) — clear; easily understood
  • Hungarian: világos — clear; easily understood
  • Hungarian: érthető — clear; easily understood
  • Hungarian: áttekinthető — clear; easily understood
  • Hungarian: értelmes — clear; easily understood
  • Hungarian: tiszta — clear; easily understood
  • Irish: glé — clear; easily understood
  • Latin: lūcidus — clear; easily understood
  • Macedonian: јасен (jasen) — clear; easily understood
  • Macedonian: луциден (luciden) — clear; easily understood
  • Māori: mārama — clear; easily understood
  • Māori: ariroa — clear; easily understood
  • Plautdietsch: kloa — clear; easily understood
  • Polish: jasny — clear; easily understood
  • Polish: klarowny — clear; easily understood
  • Polish: przejrzysty — clear; easily understood
  • Portuguese: lúcido — clear; easily understood
  • Russian: я́сный (jásnyj) — clear; easily understood
  • Russian: поня́тный (ponjátnyj) — clear; easily understood
  • Serbo-Croatian: razumljiv — clear; easily understood
  • Spanish: lúcido — clear; easily understood
  • Turkish: açık seçik — clear; easily understood
  • Ukrainian: ясний (jasnyj) — clear; easily understood
  • Ukrainian: зрозумілий (zrozumilyj) — clear; easily understood
  • Catalan: lúcid — mentally rational; sane
  • Chinese Mandarin: 清楚 (qīngchǔ) — mentally rational; sane
  • Chinese Mandarin: 清明 (qīngmíng) — mentally rational; sane
  • Finnish: selväpäinen — mentally rational; sane
  • Finnish: selkeä-älyinen — mentally rational; sane
  • French: lucide — mentally rational; sane
  • German: rational — mentally rational; sane
  • German: verständig — mentally rational; sane
  • German: klar — mentally rational; sane
  • German: brillant — mentally rational; sane
  • German: bei Verstand — mentally rational; sane
  • Hungarian: világos — mentally rational; sane
  • Hungarian: tiszta — mentally rational; sane
  • Irish: meabhrach — mentally rational; sane
  • Macedonian: разумен (razumen) — mentally rational; sane
  • Macedonian: рациона́лен (racionálen) — mentally rational; sane
  • Portuguese: lúcido — mentally rational; sane
  • Russian: разу́мный (razúmnyj) — mentally rational; sane
  • Russian: рациона́льный (racionálʹnyj) — mentally rational; sane
  • Serbo-Croatian: razuman — mentally rational; sane
  • Spanish: lúcido — mentally rational; sane
  • Ukrainian: розумний (rozumnyj) — mentally rational; sane
  • Ukrainian: раціональний (racionalʹnyj) — mentally rational; sane
  • Ukrainian: з ясним розумом (z jasnym rozumom) — mentally rational; sane
  • Bulgarian: светъл (svetǎl) — bright, luminous, translucent or transparent
  • Bulgarian: блестящ (blestjašt) — bright, luminous, translucent or transparent
  • Catalan: lúcid — bright, luminous, translucent or transparent
  • Chinese Mandarin: 清澈 (qīngchè) — bright, luminous, translucent or transparent
  • Chinese Mandarin: 透明 (tòumíng) — bright, luminous, translucent or transparent
  • Finnish: selkeä — bright, luminous, translucent or transparent
  • Finnish: kirkas — bright, luminous, translucent or transparent
  • Finnish: läpikuultava — bright, luminous, translucent or transparent
  • Finnish: läpinäkyvä — bright, luminous, translucent or transparent
  • German: hell — bright, luminous, translucent or transparent
  • German: klar — bright, luminous, translucent or transparent
  • German: leuchtend — bright, luminous, translucent or transparent
  • German: transparent — bright, luminous, translucent or transparent
  • German: transluzent — bright, luminous, translucent or transparent
  • German: licht — bright, luminous, translucent or transparent
  • German: glänzend — bright, luminous, translucent or transparent
  • Hungarian: fényes — bright, luminous, translucent or transparent
  • Hungarian: ragyogó — bright, luminous, translucent or transparent
  • Hungarian: csillogó — bright, luminous, translucent or transparent
  • Hungarian: tündöklő — bright, luminous, translucent or transparent
  • Ido: lumoza — bright, luminous, translucent or transparent
  • Macedonian: светол (svetol) — bright, luminous, translucent or transparent
  • Macedonian: бистар (bistar) — bright, luminous, translucent or transparent
  • Macedonian: ведар (vedar) — bright, luminous, translucent or transparent
  • Portuguese: lúcido — bright, luminous, translucent or transparent
  • Russian: све́тлый (svétlyj) — bright, luminous, translucent or transparent
  • Russian: я́сный (jásnyj) — bright, luminous, translucent or transparent
  • Spanish: lucido — bright, luminous, translucent or transparent
  • Spanish: brillante — bright, luminous, translucent or transparent
  • Ukrainian: світлий (svitlyj) — bright, luminous, translucent or transparent
  • Ukrainian: ясний (jasnyj) — bright, luminous, translucent or transparent