assiduous

[ uh-sij-oo-uhs ]
/ əˈsɪdʒ u əs /
SEE SYNONYMS FOR assiduous ON THESAURUS.COM

adjective

constant; unremitting: assiduous reading.
constant in application or effort; working diligently at a task; persevering; industrious; attentive: an assiduous student.

Origin of assiduous

1530–40; < Latin assiduus, equivalent to assid(ēre) to sit near, beside, dwell close to (see assess) + -uus deverbal adj. suffix; see -ous

OTHER WORDS FROM assiduous

Words nearby assiduous

asshole, asshur, assibilate, assidean, assiduity, assiduous, assign, assignable, assignat, assignation, assigned counsel

Words related to assiduous

diligent, zealous, scrupulous, indefatigable, exacting, laborious, active, attentive, busy, constant, grinding, industrious, persevering, sedulous, steady, studious, unflagging, untiring, whiz, plugging

Example sentences from the Web for assiduous

British Dictionary definitions for assiduous

assiduous
/ (əˈsɪdjʊəs) /

adjective

hard-working; persevering an assiduous researcher
undertaken with perseverance and care assiduous editing

Derived forms of assiduous

assiduously, adverb assiduousness, noun

Word Origin for assiduous

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