Link Centre Dictionary

assiduous

as·si·duous

UK/əˈsɪdjuːəs/ US/əˈsɪd͡ʒuːəs/ uncommon

adjective

1.

marked by care and persistent effort

  • “her assiduous attempts to learn French”
  • “assiduous research”
  • “sedulous pursuit of legal and moral principles”
Synonyms
Similar

Origin

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.

Related words

WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.