Standard Lemma guide

assiduous

adj · 2 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.

  • UK: /əˈsɪdjuːəs/
  • UK: /əˈsɪd͡ʒuːəs/
  • General-American: /əˈsɪd͡ʒu.əs/
  • US: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: AH0 S IH1 D W AH0 S Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Hard-working, diligent or regular (in attendance or work); industrious.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

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

Antonyms: none provided

2

adjective satellite

Meaning 2

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: sedulous

Antonyms: none provided

History

Etymology

A learned borrowing from Latin assiduus, from assidere (“to sit down to”), from ad- (“to”) + sedere (“to sit”). Compare sedulous. Cognate (via assidere) to assess.

Across languages

Translations

50 source translations are retained for this English entry.

  • Armenian: աշխատասեր (ašxataser) — hard-working
  • Bulgarian: усърден (usǎrden) — hard-working
  • Bulgarian: прилежен (priležen) — hard-working
  • Bulgarian: старателен (staratelen) — hard-working
  • Chinese Cantonese: 努力嘅 (nou5 lik6 ge3) — hard-working
  • Czech: pilný — hard-working
  • Czech: pečlivý — hard-working
  • Czech: svědomitý — hard-working
  • Dutch: ijverig — hard-working
  • Dutch: vlijtig — hard-working
  • Dutch: betrouwbaar — hard-working
  • Esperanto: asidua — hard-working
  • Finnish: ahkera — hard-working
  • Finnish: uuttera — hard-working
  • French: assidu — hard-working
  • German: fleißig — hard-working
  • German: geflissen — hard-working
  • German: gewissenhaft — hard-working
  • Greek: επιμελής (epimelís) — hard-working
  • Greek: εργατικός (ergatikós) — hard-working
  • Hungarian: kötelességtudó — hard-working
  • Ido: asidua — hard-working
  • Indonesian: tekun — hard-working
  • Indonesian: giat — hard-working
  • Indonesian: rajin — hard-working
  • Indonesian: kerja keras — hard-working
  • Irish: dúthrachtach — hard-working
  • Italian: assiduo — hard-working
  • Japanese: 真面目 (majime) — hard-working
  • Korean: 부지런한 (bujireonhan) — hard-working
  • Polish: gorliwy — hard-working
  • Polish: sumienny — hard-working
  • Polish: wytrwały — hard-working
  • Portuguese: assíduo — hard-working
  • Portuguese: trabalhador — hard-working
  • Portuguese: diligente — hard-working
  • Romanian: asiduu — hard-working
  • Romanian: stăruitor — hard-working
  • Romanian: harnic — hard-working
  • Russian: стара́тельный (starátelʹnyj) — hard-working
  • Russian: приле́жный (priléžnyj) — hard-working
  • Russian: усе́рдный (usérdnyj) — hard-working
  • Scottish Gaelic: leanmhainneach — hard-working
  • Serbo-Croatian: prilježno — hard-working
  • Serbo-Croatian: usrdno — hard-working
  • Serbo-Croatian: marno — hard-working
  • Spanish: asiduo — hard-working
  • Swedish: flitig — hard-working
  • Thai: ขยัน (kà-yǎn) — hard-working
  • Ukrainian: працьовитий (pracʹovytyj) — hard-working
Real reading context

assiduous in complete knowledge articles