deviate
C1Formal / Academic
Definition
Meaning
To turn away from a standard, expected course, principle, or norm.
To behave or think in a way that differs from what is accepted, expected, or planned; to diverge from a statistical average or established pattern.
Linguistics
Semantic Notes
The verb is most commonly used in its intransitive form, often followed by 'from'. It carries a slightly negative connotation of straying from what is right, normal, or correct. As an adjective or noun (deviant), it has stronger negative, often pathological or criminal, implications.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning. Spelling remains '-ate' in both varieties.
Connotations
Identical connotations of diverging from an accepted standard.
Frequency
Similar frequency of use, with high usage in academic and technical contexts in both regions.
Vocabulary
Collocations
Grammar
Valency Patterns
[Subject] + deviate + from + [Object (norm/plan/course)]It is + adjective (e.g., unacceptable/rare) + to deviate + from + [Object]Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “Stick to the script (idiomatic antonym for 'deviate from the plan')”
Usage
Context Usage
Business
Referring to not following a business plan, budget, or protocol. 'The project must not deviate from the agreed budget.'
Academic
Common in statistics (deviate from the mean), sociology (deviant behaviour), and discourse analysis (deviate from the topic).
Everyday
Used less frequently, but understood. 'He never deviates from his morning routine.'
Technical
Used in engineering (a missile deviates from its trajectory), physics (light deviating), and data science.
Examples
By Part of Speech
verb
British English
- The lorry deviated from its lane and caused a crash.
- We cannot deviate from the terms of the contract.
- His account deviates markedly from the official record.
American English
- The truck deviated from its lane and caused a wreck.
- The data points that deviate from the trend are called outliers.
- She never deviates from her commitment to honesty.
adverb
British English
- The vehicle moved deviatingly across the motorway. (Extremely rare/unnatural; 'erratically' is preferred)
- Not standard usage.
American English
- Not standard usage. 'Deviously' or 'erratically' are used for the manner of deviation.
adjective
British English
- The deviant behaviour was noted by the psychologist. (Note: 'deviant' is the standard adjective form)
- A deviate specimen was found among the samples. (Rare, technical use)
American English
- Sociologists study deviant subcultures.
- The test flagged the deviate response for review.
Examples
By CEFR Level
- Please do not deviate from the instructions.
- The plane deviated from its original route due to a storm.
- The film's plot deviates significantly from the original novel.
- Investors were concerned when the company's profits began to deviate from projections.
- The study found that children's syntactic development rarely deviates from a predictable sequence.
- Any attempt to deviate from the established diplomatic protocol would be seen as a provocation.
Learning
Memory Aids
Mnemonic
Think of a DEVIce that takes an unexpected route (ATE the planned path). DEVI-ATE.
Conceptual Metaphor
PATH / JOURNEY (The norm is a straight path; to deviate is to wander off it).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid using 'deviate' for simple 'change' (изменять). It implies a *wrong* or *unexpected* change from a standard. Do not confuse with 'develop' (развиваться).
Common Mistakes
- Using it transitively without 'from' (Incorrect: 'He deviated the plan.' Correct: 'He deviated *from* the plan.').
- Confusing 'deviate' (verb) with 'deviant' (adjective/noun).
Practice
Quiz
In which sentence is 'deviate' used INCORRECTLY?
FAQ
Frequently Asked Questions
It is generally neutral-to-negative, implying a departure from what is correct, normal, or planned. In neutral scientific contexts (e.g., 'data points deviate'), it simply describes divergence.
They are often synonyms. 'Diverge' can suggest a splitting into separate paths (two roads diverge), while 'deviate' often implies a single agent turning away from a single, correct path. 'Deviate' has a stronger implication of error or transgression.
Yes, but it is rare and technical (e.g., in statistics, a 'deviate' is a value). The more common noun is 'deviation'. The related noun 'deviant' refers to a person whose behaviour deviates from norms.
No, the standard preposition is 'from'. The pattern is 'deviate FROM something TO something else.' Example: 'The conversation deviated from politics to football.'