[ 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
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. 2019
British Dictionary definitions for superactive
/ (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