apt

apt — adjective

1. perfectly matched to the moment, person, or topic — for example, a quotation tha

1.adjectiveC1
Definition

perfectly matched to the moment, person, or topic — for example, a quotation that captures exactly what someone meant, or a name that sums up a place's character.

Example

Mei chose an apt quotation from her grandfather to open the wedding speech.

apt + noun (quotation, comment, phrase)

"Storm City" is an apt nickname for Wellington, where the wind never stops.

apt nickname / description / title

Common collocations
  • apt quotation
  • apt comment
  • apt description
  • apt comparison
  • apt nickname
  • apt phrase
Synonyms
  • fitting

    everyday alternative; less formal than 'apt'

  • appropriate

    broader and more common; 'apt' suggests striking precision

  • pertinent

    formal; stresses direct relevance to the topic

Antonyms

Grammar Patterns

apt + noun

apt + for + noun

Usage Note

Most often used to describe words, names, comments, descriptions, or examples — not people. Distinguish from sense 3 (ABLE), where the subject is a person.

Common Mistakes

She is very apt for the job.
She is well suited to the job.
'apt' rarely describes people in this 'fitting' sense; use 'suited to' or 'right for'.

2. having a habit or tendency to behave in a certain way, often when the behaviour

2.adjectiveC1
Definition

having a habit or tendency to behave in a certain way, often when the behaviour is unwanted, careless, or hard to control.

Example

Old wooden bridges are apt to creak loudly when a heavy truck drives across.

be apt to + bare infinitive (typical tendency)

Toddlers are apt to forget the rules the moment a parent leaves the room.

be apt to + verb (predictable behaviour)

Common collocations
  • apt to forget
  • apt to break
  • apt to make mistakes
  • apt to be
Synonyms
  • liable

    very close in meaning; often suggests legal or unwanted risk

  • prone

    stresses a recurring weakness, e.g. 'prone to mistakes'

  • inclined

    softer; emphasises personal disposition rather than risk

Antonyms
  • unlikely

    general opposite for predicted behaviour

Grammar Patterns

be apt to + verb

Usage Note

Almost always used in the pattern 'be apt to + verb'. Often carries a negative or cautionary tone — the tendency is usually toward something unwanted (forgetting, breaking, getting angry). For neutral likelihood, prefer 'likely to'.

Common Mistakes

He is apt that he will be late.
He is apt to be late.
this sense takes a to-infinitive, not a that-clause.
I am apt to win the prize.
I am likely to win the prize.
'apt to' fits habits and risks, not one-off positive predictions.

3. (of a person, especially a learner) picking up new ideas, languages, or skills q

3.adjectiveC2
Definition

(of a person, especially a learner) picking up new ideas, languages, or skills quickly and with little effort.

Example

Yuki proved an apt pupil, mastering the violin within two summers.

an apt pupil / student / learner (set phrase)

Even at six, Tomás was apt at picking up new card games after one round.

apt at + -ing (skill area)

Common collocations
  • apt pupil
  • apt student
  • apt learner
  • apt at
Synonyms
  • gifted

    stronger; suggests rare natural talent

  • talented

    common, everyday equivalent

  • quick

    informal; 'a quick learner' is the everyday phrase

Antonyms
  • slow

    of a learner who needs more time

Grammar Patterns

apt + at + noun/-ing

apt + pupil/student

Usage Note

Subject is a person, usually a learner. Frequently appears in the fixed phrase 'an apt pupil/student'. Distinguish from sense 1 (FITTING), where the subject is typically a thing such as a remark or name.

Common Mistakes

She is apt to maths.
She is apt at maths.
use 'apt at' for skill, not 'apt to'.

apt — noun

Word family

  • aptly
    adverbC1
  • aptness
    nounC2
  • aptitude
    nounB2
  • inapt
    adjectiveC2
  • inaptly
    adverbC2

Synonym discussion

Sense: adjective/2

All five words describe a tendency for something to happen, but they sit at different points on the formality and risk scales. 'Likely' is the neutral, everyday choice and works for any prediction, good or bad ('She is likely to win'). 'Apt' and 'liable' are more formal and usually point to a habitual or unwanted tendency — old pipes are apt to leak, careless drivers are liable to fines. 'Prone' specifically suggests a recurring weakness, often physical or psychological ('prone to headaches'). 'Inclined' is the softest, focusing on personal disposition rather than risk ('I'm inclined to agree'). Quick test: 'apt' and 'liable' for habits and risks; 'prone' for repeated weaknesses; 'inclined' for opinions and preferences; 'likely' for any plain prediction.

apt ↗liable ↗pronelikely ↗inclined ↗

Common collocations

Nouns

  • apt pupil
  • apt description
  • apt quotation
  • apt comment
  • apt name
  • apt phrase

Adverbs

  • particularly apt
  • especially apt
  • surprisingly apt
  • remarkably apt

Phrases

  • an apt comparison
  • be apt to do something
  • an apt choice of words

Prepositions

  • apt at
  • apt for
  • apt to

Etymology

LatinOld FrenchMiddle EnglishEnglish

'Apt' came into English in the late 1300s from Latin 'aptus', meaning 'fitted' or 'joined together' — the past participle of 'apere', 'to fasten'. The same Latin root gave us 'aptitude' (a natural fit for a skill) and, more distantly, 'adapt' (to fit oneself to new conditions). The 'likely to' sense developed later: if something is well fitted to behave a certain way, it is likely to do so. The American written abbreviation 'Apt.' for 'apartment' is unrelated — it is just a clipped spelling that became standard on US postal addresses in the twentieth century.