- to act on; produce an effect or change in: Cold weather affected the crops.
- to impress the mind or move the feelings of: The music affected him deeply.
- (of pain, disease, etc.) to attack or lay hold of.
- Psychology. feeling or emotion.
- Psychiatry. an expressed or observed emotional response: Restricted, flat, or blunted affect may be a symptom of mental illness, especially schizophrenia.
- Obsolete. affection; passion; sensation; inclination; inward disposition or feeling.
Origin of affect1
SynonymsSee more synonyms for on Thesaurus.com
- to give the appearance of; pretend or feign: to affect knowledge of the situation.
- to assume artificially, pretentiously, or for effect: to affect a Southern accent.
- to use, wear, or adopt by preference; choose; prefer: the peculiar costume he affected.
- to assume the character or attitude of: to affect the freethinker.
- (of things) to tend toward habitually or naturally: a substance that affects colloidal form.
- (of animals and plants) to occupy or inhabit; live in or on: Lions affect Africa. Moss affects the northern slopes.
- to have affection for; fancy.
- to aim at; aspire to.
- Obsolete. to incline, tend, or favor (usually followed by to): He affects to the old ways.
Origin of affect2
SynonymsSee more synonyms for on Thesaurus.com
Related Wordsdisturb, upset, influence, involve, interest, touch, alter, change, regard, inspire, perturb, relate, prevail, move, impress, transform, induce, sway, modify, impinge
Examples from the Web for affect
The vaccine is delivered through a “carrier virus” that causes a common cold in chimpanzees but does not affect humans.The Race for the Ebola Vaccine
January 7, 2015
At this point in his life, Denton has enough filthy lucre in his bank account to affect a certain lack of interest in the stuff.The Gospel According to Nick Denton—What Next For The Gawker Founder?
December 14, 2014
If they are treating black people differently, then how can that not affect the president?It’s Not Just the Cops—Racism Is a Problem for the Secret Service, Too
December 6, 2014
We tried to become involved with committees that affect us and policing before Ferguson.SWAT Lobby Shoots to Kill Police Reform After Ferguson
December 2, 2014
Her personal feelings about religion do not affect how she behaves legally, politically, or socially.The Good Wife’s Religion Politics: Voters Have No Faith in Alicia's Atheism
November 24, 2014
It was his habit to affect that he constantly forgot his mother's name.The Spenders
Harry Leon Wilson
Mr Clayton had taught me wisdom, which his own bad conduct could not sully or affect.
So that they are advised with upon every article relating to us, or that may affect us.Clarissa, Volume 1 (of 9)
Evils that were not immediately near me had no power to affect my imagination.Tales And Novels, Volume 4 (of 10)
The disappearance of the last piece of money could not affect people of position.The Secret Agent
- to act upon or influence, esp in an adverse waydamp affected the sparking plugs
- to move or disturb emotionally or mentallyher death affected him greatly
- (of pain, disease, etc) to attack
- psychol the emotion associated with an idea or set of ideasSee also affection
- to put on an appearance or show of; make a pretence ofto affect ignorance
- to imitate or assume, esp pretentiouslyto affect an accent
- to have or use by preferenceshe always affects funereal clothing
- to adopt the character, manner, etc, ofhe was always affecting the politician
- (of plants or animals) to live or grow inpenguins affect an arctic climate
- to incline naturally or habitually towardsfalling drops of liquid affect roundness
Word Origin and History for affect
late 14c., "mental state," from Latin noun use of affectus "furnished, supplied, endowed," figuratively "disposed, constituted, inclined," past participle of afficere "to do; treat, use, manage, handle; act on; have influence on, do something to," a verb of broad meaning, from ad- "to" (see ad-) + facere (past participle factus) "do" (see factitious). Perhaps obsolete except in psychology. Related: Affects.
"to make a pretense of," 1660s, earlier "to assume the character of (someone)" (1590s); originally in English "to aim at, aspire to, desire" (early 15c.), from Middle French affecter (15c.), from Latin affectare "to strive after, aim at," frequentative of afficere (past participle affectus) "to do something to, act on" (see affect (n.)). Related: Affected; affecting.
"to make an impression on," 1630s; earlier "to attack" (c.1600), "act upon, infect" (early 15c.), from affect (n.). Related: Affected; affecting.
- To have an influence on or affect a change in.
- To attack or infect, as a disease.
- Feeling or emotion, especially as manifested by facial expression or body language.