Wordiyo
RootsVocabularyCoursesGuidesMy WordsPricing
Wordiyo

Build your English vocabulary systematically through roots and etymology.

Explore

  • Roots
  • Vocabulary
  • My Words

Learn

  • Guides
  • Pricing

Company

  • About
  • Terms
  • Privacy

© 2026 Wordiyo.

  1. Home
  2. /sit
  3. /assiduous

assiduous

UK/ə'sidjuəs/US/ә'sidjuәs/
TOEFLGREC2

Definitions

adj.

Showing great care, attention, and persistent effort

勤勉的,刻苦专注的

Root Breakdown

Root-derived
as-to, toward
+
sidsit, settle, be placed
+
-uousfull of, having the quality of
=assiduous

as- (ad-, at, to) + sid (sit) + -uous = 'sitting at' a task — staying glued to your seat and your work. From Latin assiduus, 'continually present,' the image of someone who sits down and simply doesn't get up until the job is done.

Root sit still carries 98 more words

Why It Means This

Assiduous hides the sit-root beautifully: Latin assiduus described someone who 'sits at' (ad- + sedēre) their work without leaving. The diligence is literally a refusal to get up from the seat — sitting steadily until the task is done.

Common Collocations

  • 1.assiduous worker勤奋的工人
  • 2.assiduous student勤奋的学生
  • 3.assiduous effort不懈的努力

Example Sentences

  • 1.

    Her assiduous research uncovered facts everyone else had missed.

  • 2.

    He was an assiduous student who never skipped a class.

Derivatives

assiduouslyassiduity
← Back to sit