deviate

American  

[dee-vee-eyt, dee-vee-it] / ˈdi viˌeɪt, ˈdi vi ɪt /

verb (used without object)

deviated, deviating

1. to turn aside, as from a route, way, course, etc.

   Synonyms:

   stray, wander, veer

2. to depart or swerve, as from a procedure, course of action, or acceptable norm.

3. to digress, as from a line of thought or reasoning.

---

verb (used with object)

deviated, deviating

1. to cause to swerve; turn aside.

adjective

1. characterized by deviation or departure from an accepted norm or standard, as of behavior.

noun

1. a person or thing that departs from the accepted norm or standard.

2. a person whose sexual behavior departs from the norm in a way that is considered socially or morally unacceptable.

3. Statistics. a variable equal to the difference between a variate and some fixed value, often the mean.

deviate British  

verb

1. (usually intr) to differ or diverge or cause to differ or diverge, as in belief or thought

2. (usually intr) to turn aside or cause to turn aside; diverge or cause to diverge

3. (intr) psychol to depart from an accepted standard or convention

---

noun

1. another word for deviant

Related Words

Deviate, digress, diverge, swerve imply turning or going aside from a path. To deviate is to turn or wander, often by slight degrees, from what is considered the most direct or desirable approach to a given physical, intellectual, or moral end: Fear caused him to deviate from the truth. To digress is primarily to wander from the main theme or topic in writing or speaking: Some authors digress to relate entertaining episodes. Two paths diverge when they proceed from a common point in such directions that the distance between them increases: The sides of an angle diverge from a common point. Their interests gradually diverged. To swerve is to make a sudden or sharp turn from a line or course: The car swerved to avoid striking a pedestrian.

Other Word Forms

• deviability
  noun
• deviable
  adjective
• deviator
  noun
• deviatory
  adjective
• nondeviating
  adjective
• undeviable
  adjective
• undeviated
  adjective
• undeviating
  adjective
• undeviatingly
  adverb

Etymology

Origin of deviate

First recorded in 1625–35; from Late Latin dēviātus “turned from the road,” past participle of dēviāre “to stray, turn from the road,” from Latin dē- de- + vi(a) “road, way” + āre, infinitive verb suffix

Explanation

If something turns off course or is diverted, it deviates from the expected or the norm. Deviating from explicit recipe directions is never a good idea, unless you want inedible food or a kitchen fire. The verb deviate can refer to divergence from a predicted path or road ("the airplane's route deviated from the flight plan"), but it can also refer to a divergence from normal behavior or expectations. When women demanded the right to vote, their behavior was considered shocking and deviated from the expectations of the time.

Example Sentences

United are not unwilling to talk but are determined not to deviate from a pre-stated desire to keep their wage bill under control.

From BBC • May 8, 2026

ECB President Christine Lagarde in a speech last week said that should inflation deviate significantly from target, the response must be appropriately forceful or persistent.

From The Wall Street Journal • Mar. 31, 2026

The funds’ daily time frame is key, since over longer periods the funds’ performance tends to deviate dramatically from the index or stocks they target.

From Barron's • Mar. 23, 2026

The one thing that would cause him to deviate would be a sharp and dangerous economic slowdown, ideally combined with a slump in inflation.

From MarketWatch • Mar. 18, 2026

I did not mean to deviate like that.

From "Code Name Verity" by Elizabeth Wein

Related Words

• depart
• differ
• diverge
• vary
• veer