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Definitions

active

[ak-tiv] / ˈæk tɪv /
ADJECTIVE
having movement
Synonyms
STRONGEST
alive effective operating
STRONG
flowing functioning going mobile movable operative progressive pushing rapid rolling running rushing rustling shifting simmering speeding streaming traveling turning walking working
WEAK
astir at work bustling efficacious exertive hasty impelling in force in play in process moving restless speedy swarming
Antonyms
STRONG
fixed inoperative unmovable unworking
WEAK
abeyant disinterested dormant idle immobile inactive indifferent inert lazy quiescent quiet sluggish
ADJECTIVE
very involved in activity
Synonyms
STRONGEST
aggressive alive bold busy determined diligent dynamic eager energetic engaged enthusiastic forceful intense keen lively quick ready resolute
STRONG
alert daring fireball jumping pushing rapid sharp whiz
WEAK
agile animated assiduous brisk bustling chipper dashing dexterous enlivened enterprising eventful forcible fresh frisky hard-working high-spirited hyper industrious inventive nimble on the move perky persevering purposeful sprightly spry zealous
Antonyms
STRONGEST
afraid apathetic calm cowardly disinterested dispirited dull idle ignorant inactive indifferent irresolute lazy lethargic lifeless meek quiet slow sluggish stupid uneducated unenthusiastic weak
WEAK
abeyant dormant immobile inert quiescent

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

All mammals have a version of hyaluronan synthase 2, but the naked mole rat version appears to be especially active.

From Science Daily • May 10, 2026

Why don’t I take an active, assertive role more often?

From Slate • May 10, 2026

The public statements have done little to dispel the impression that Khamenei remains too unwell to play an active role in the day-to-day running of the country.

From The Wall Street Journal • May 10, 2026

Vibrant LA has formed a fundraising committee and will be active in supporting moderates, Cheng said.

From Los Angeles Times • May 9, 2026

Copperheads, and they are very active in the springtime after their long hibernation.

From "Secrets at Sea" by Richard Peck

Vocabulary lists containing active

The SAT: Multiple-Meaning Words, List 4

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The New SAT: Multiple-Meaning Words

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List 1

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