Standard Lemma guide

sedulous

adj · 3 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.

  • Received-Pronunciation: /ˈsɛd͡ʒʊləs/
  • Received-Pronunciation: /ˈsɛdjʊ-/
  • Received-Pronunciation: Recorded audio is listed in the source snapshot.
  • General-American: /ˈsɛd͡ʒələs/

1

adj

Meaning 1

Of a person: diligent in application or pursuit; constant and persevering in business or in endeavours to effect a goal; steadily industrious.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: assiduous, diligent, dogged, hardworking, industrious, notable, sedulous, studious, painstaking, worksome

Antonyms: none provided

2

adj

Meaning 2

Of an activity: carried out with diligence.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

adjective satellite

Meaning 3

marked by care and persistent effort

Definition source: Princeton WordNet 3.0

Examples

  • her assiduous attempts to learn French
  • assiduous research
  • sedulous pursuit of legal and moral principles

Meaning relationships

Synonyms: assiduous

Antonyms: none provided

History

Etymology

From Latin sēdulus (“diligent, industrious, sedulous; solicitous; unremitting; zealous”) + English -ous. Sēdulus is probably derived from sēdulō (“diligently; carefully; purposely; zealously”) (possibly from sē- (prefix meaning ‘without’) + dolō (ablative singular of dolus (“deceit, deception; evil intent, malice”), ultimately from Proto-Indo-European *del- (“to count, reckon”))) + -us (suffix forming adjectives).

Across languages

Translations

38 source translations are retained for this English entry.

  • Bulgarian: усърден (usǎrden) — of a person: diligent in application or pursuit
  • Dutch: onverdroten — of a person: diligent in application or pursuit
  • Finnish: väsymätön — of a person: diligent in application or pursuit
  • French: assidu — of a person: diligent in application or pursuit
  • French: diligent — of a person: diligent in application or pursuit
  • French: persévérant — of a person: diligent in application or pursuit
  • French: zélé — of a person: diligent in application or pursuit
  • German: eifrig — of a person: diligent in application or pursuit
  • German: emsig — of a person: diligent in application or pursuit
  • German: gewissenhaft — of a person: diligent in application or pursuit
  • Ido: zelanta — of a person: diligent in application or pursuit
  • Ido: zeloza — of a person: diligent in application or pursuit
  • Italian: diligente — of a person: diligent in application or pursuit
  • Italian: meticoloso — of a person: diligent in application or pursuit
  • Italian: solerte — of a person: diligent in application or pursuit
  • Japanese: 勤勉な (kinbenna) — of a person: diligent in application or pursuit
  • Japanese: せっせと働く (sessetohataraku) — of a person: diligent in application or pursuit
  • Latin: sēdulus — of a person: diligent in application or pursuit
  • Polish: skrzętny — of a person: diligent in application or pursuit
  • Polish: gorliwy — of a person: diligent in application or pursuit
  • Polish: pilny — of a person: diligent in application or pursuit
  • Portuguese: diligente — of a person: diligent in application or pursuit
  • Romanian: asiduu — of a person: diligent in application or pursuit
  • Romanian: perseverent — of a person: diligent in application or pursuit
  • Romanian: stăruitor — of a person: diligent in application or pursuit
  • Russian: приле́жный (priléžnyj) — of a person: diligent in application or pursuit
  • Russian: стара́тельный (starátelʹnyj) — of a person: diligent in application or pursuit
  • Russian: упо́рный (upórnyj) — of a person: diligent in application or pursuit
  • Russian: усе́рдный (usérdnyj) — of a person: diligent in application or pursuit
  • Scottish Gaelic: dùrachdach — of a person: diligent in application or pursuit
  • Swedish: flitig — of a person: diligent in application or pursuit
  • Swedish: oförtruten — of a person: diligent in application or pursuit
  • Swedish: trägen — of a person: diligent in application or pursuit
  • Ukrainian: стара́нний (staránnyj) — of a person: diligent in application or pursuit
  • Bulgarian: прилежен (priležen) — of an activity: carried out with diligence
  • Polish: skrzętny — of an activity: carried out with diligence
  • Polish: gorliwy — of an activity: carried out with diligence
  • Polish: pilny — of an activity: carried out with diligence