Dictionary
Thesaurus
Encyclopedia
Translator
Web
Related Searches
Synonyms
Nearby Words

assiduous

 - 3 dictionary results

as⋅sid⋅u⋅ous

  [uh-sij-oo-uhs]
Use assiduous in a Sentence
–adjective
1. constant; unremitting: assiduous reading.
2. constant in application or effort; working diligently at a task; persevering; industrious; attentive: an assiduous student.
Origin:
1530–40; < L assiduus, equiv. to assid(ēre) to sit near, beside, dwell close to (see assess ) + -uus deverbal adj. suffix; see -ous

Related forms:
as⋅sid⋅u⋅ous⋅ly, adverb
as⋅sid⋅u⋅ous⋅ness, noun

Synonyms:
1. continuous, tireless, persistent. 2. studious, diligent, sedulous.

Antonyms:
1, 2. inconstant, lazy.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To assiduous
as·sid·u·ous   (ə-sĭj'ōō-əs)   
adj.  

  1. Constant in application or attention; diligent: an assiduous worker who strove for perfection. See Synonyms at busy.

  2. Unceasing; persistent: assiduous research.


[From Latin assiduus, from assidēre, to attend to : ad-, ad- + sedēre, to sit; see sed- in Indo-European roots.]
as·sid'u·ous·ly adv., as·sid'u·ous·ness n.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
Word Origin & History

assiduous 
1538, from L. assiduus "busy, incessant, continual, constant," from assidere "to sit down to," thus "constantly occupied" at one's work (see assess). The word acquired a taint of "servility" in 18c.
Online Etymology Dictionary, © 2001 Douglas Harper
Cite This Source
Search another word or see assiduous on Thesaurus | Reference
FacebookTwitterFollow us:
Partner Sites:
Ask AnswersEviteExpediaHotelsHotwireLife123LiveDailyMy Way