assiduous

[ uh-sij-oo-uhs ]
See synonyms for: assiduousassiduouslyassiduousness on Thesaurus.com

adjective
  1. constant in application or effort; working diligently at a task; persevering; industrious; meticulous: an assiduous student.

  2. constant; unremitting: assiduous reading.

Origin of assiduous

1
First recorded in 1530–40; from Latin assiduus, equivalent to assid(ēre) “to sit near or beside, dwell close to” (see assess) + -uus adjective suffix; see -ous

Other words for assiduous

Opposites for assiduous

Other words from assiduous

  • as·sid·u·ous·ly, adverb
  • as·sid·u·ous·ness, noun
  • un·as·sid·u·ous, adjective
  • un·as·sid·u·ous·ness, noun

Words Nearby assiduous

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How to use assiduous in a sentence

British Dictionary definitions for assiduous

assiduous

/ (əˈsɪdjʊəs) /


adjective
  1. hard-working; persevering: an assiduous researcher

  2. undertaken with perseverance and care: assiduous editing

Origin of assiduous

1
C16: from Latin assiduus sitting down to (something), from assidēre to sit beside, from sedēre to sit

Derived forms of assiduous

  • assiduously, adverb
  • assiduousness, noun

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