Assiduous

hard

uh-SIJ-oo-us

adjective

Definition

Showing great care and perseverance

Examples

Her assiduous efforts finally paid off with a promotion.
The researcher's assiduous documentation was invaluable.

Categories

GRE Tip

Assiduous is a hard-difficulty GRE word. On the GRE, you might see it paired with synonyms like "diligent" or "industrious" in Sentence Equivalence questions. Look for contrast clues (however, despite, although) that signal the opposite meaning. Words like "lazy".

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