[ ak-tiv ]
/ ˈæk tɪv /
being in a state of existence, progress, or motion: active hostilities.
involving physical effort and action: active sports.
having the power of quick motion; nimble: active as a gazelle.
characterized by action, motion, volume, use, participation, etc.: an active market in wheat; an active list of subscribers.
effective (opposed to inert): active ingredients.
Grammar. noting or pertaining to a voice of verbal inflection in which typically the subject of the sentence is represented as performing the action expressed by the verb (opposed to passive): Writes in He writes a letter every day is an active verb form.
requiring or giving rise to action; practical: an active course.
(of a volcano) in eruption.
requiring personal effort or attention; not automatic: an active alarm system.
interest-bearing: active paper.
Medicine/Medical. acting quickly; producing immediate effects: active remedies.
Sociology. (of a crowd) engaging in purposeful activity, often of a militant nature.Compare expressive(def 4).
Aerospace. able to transmit signals: an active communications satellite.
Electronics. (of a device or system) acting as a source of electrical energy, as a generator, or capable of amplifying or converting voltages or currents, as a transistor or diode.
(of a solar heating system) accumulating and distributing solar heat by mechanical means.
Military. serving on active duty.
- the active voice.
- a form or construction in the active voice.
an active person, member, subscriber, etc.: The circular was mailed only to the actives on our list.
Informal. something showing considerable action or activity: On the stock market there was heavy trading in the actives.
Words nearby active
Origin of active
SYNONYMS FOR active
OTHER WORDS FROM active
ac·tive·ly, adverbac·tive·ness, nounnon·ac·tive, adjective, nounpre·ac·tive, adjective
pre·ac·tive·ly, adverbpre·ac·tive·ness, nounqua·si-ac·tive, adjectivequa·si-ac·tive·ly, adverbsem·i·ac·tive, adjectivesem·i·ac·tive·ly, adverbsem·i·ac·tive·ness, nounsu·per·ac·tive, adjectivesu·per·ac·tive·ly, adverbsu·per·ac·tive·ness, noun
synonym study for active
3. Active, energetic, strenuous, vigorous imply a liveliness and briskness in accomplishing something. Active suggests quickness and diligence as opposed to laziness or dilatory methods: an active and useful person. Energetic suggests forceful and intense, sometimes nervous, activity: conducting an energetic campaign. Strenuous implies arduous and zealous activity with a sense of urgency: a strenuous effort. Vigorous suggests strong, effective activity: using vigorous measures to accomplish an end.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for nonactive
/ (ˈæktɪv) /
in a state of action; moving, working, or doing something
busy or involvedan active life
exerting influence; effectivean active ingredient
being fully engaged in military service (esp in the phrase on active service)
astronomy (of the sun) exhibiting a large number of sunspots, solar flares, etc, and a marked variation in intensity and frequency of radio emissionCompare quiet (def. 8)
- producing or being used to produce profit, esp in the form of interestactive balances
- of or denoting stocks or shares that have been actively bought and sold as recorded in the Official List of the London Stock Exchange
- containing a source of poweran active network
- capable of amplifying a signal or controlling some functionan active component; an active communication satellite
- the active voice
- an active verb
mainly US a member of an organization who participates in its activities
Derived forms of activeactively, adverbactiveness, noun
Word Origin for active
C14: from Latin āctīvus. See act, -ive
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012