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acted upon; influenced.
influenced in a harmful way; impaired, harmed, or attacked, as by climate or disease.
(of the mind or feelings) impressed; moved; touched:
She was deeply affected by their generosity.
assumed artificially; unnatural; feigned:
affected sophistication; an affected British accent.
assuming or pretending to possess that which is not natural:
Her affected wealth and social pedigree are so obviously false that it’s embarrassing.
inclined or disposed:
well affected toward the speaker’s cause.
held in affection; fancied:
a novel much affected by our grandparents.
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, ; passion; sensation; inclination; inward disposition or feeling.
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.
Archaic.

to have for; fancy.
to aim at; aspire to.

Obsolete. to incline, tend, or favor (usually followed by to):
He affects to the old ways.
Contemporary Examples

The panic is exacerbated when those still working presumably safely in the affected areas are worried, too.
Ebola-Fueled Racism Is on the Rise in Europe Barbie Latza Nadeau August 20, 2014

And like so many people, 9/11 affected me deeply and changed my life in a profound way.
How 9/11 Changed My Life Gary Sinise September 9, 2011

The behavioral problems discussed above have not just affected children but adults, too.
The High Cost of Progress Evelyn De Rothschild October 15, 2010

Women are in danger already; if the troops go, the people who will be most affected will be women and children.
Don’t Abandon Us, Obama Gayle Tzemach Lemmon November 10, 2009

Many can testify to how Bill affected their lives, always in the most positive ways.
Remembering Bill Safire Morton Janklow September 26, 2009

Historical Examples

The lung was not yet attacked, but the bronchial tubes were affected.
The Bramleighs Of Bishop’s Folly Charles James Lever

I said, that I should not be affected by the splendour of even a royal title.
Clarissa, Volume 1 (of 9) Samuel Richardson

Again, the influence of English ideas has affected their public worship.
History of the Moravian Church J. E. Hutton

Like many of the courtiers, Mistress Fitton affected the society of the players.
The Man Shakespeare Frank Harris

For my part, my heart was so affected that I could not say a word.
The Confessions of J. J. Rousseau, Complete Jean Jacques Rousseau

adjective (usually postpositive)
deeply moved, esp by sorrow or grief: he was greatly affected by her departure
changed, esp detrimentally
adjective
behaving, speaking, etc, in an artificial or assumed way, esp in order to impress others
feigned: affected indifference
(archaic) inclined; disposed
verb (transitive) (əˈfɛkt)
to act upon or influence, esp in an adverse way: damp affected the sparking plugs
to move or disturb emotionally or mentally: her death affected him greatly
(of pain, disease, etc) to attack
noun (ˈæfɛkt; əˈfɛkt)
(psychol) the emotion associated with an idea or set of ideas See also affection
verb (mainly transitive)
to put on an appearance or show of; make a pretence of: to affect ignorance
to imitate or assume, esp pretentiously: to affect an accent
to have or use by preference: she always affects funereal clothing
to adopt the character, manner, etc, of: he was always affecting the politician
(of plants or animals) to live or grow in: penguins affect an arctic climate
to incline naturally or habitually towards: falling drops of liquid affect roundness
adj.

past participle adjective from affect (v.2); 1530s in the now-obsolete sense “favorably disposed” (preserved in disaffected); meaning “artificially displayed” is recorded from 1580s.
n.

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.
v.

“to make an impression on,” 1630s; earlier “to attack” (c.1600), “act upon, infect” (early 15c.), from affect (n.). Related: Affected; affecting.

“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.

affect af·fect (ə-fěkt’)
v. af·fect·ed, af·fect·ing, af·fects

To have an influence on or affect a change in.

To attack or infect, as a disease.

n. (āf’ěkt’)

A feeling or emotion as distinguished from thought, or action.

A strong feeling with active consequences.