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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.

The Eta Aquarids will also be active between 9 April to 28 May, with the peak in the early hours of 6 May 2026.

From BBC • Apr. 15, 2026

The U.S. could move from passive beneficiary to active participant in shaping energy flows.

From The Wall Street Journal • Apr. 14, 2026

Timing has been a factor—with Brent crude futures most active contract trading for June delivery and WTI for May.

From Barron's • Apr. 14, 2026

This transformation makes T cells more active, more durable, and better equipped to destroy tumors.

From Science Daily • Apr. 14, 2026

Before he was to play his first game, Bobby was rated at 2298, making him among the top ten active players in the country.

From "Endgame" by Frank Brady

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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