Able vs Competent

When to use each in English, with meaning, register, and examples.

Able

Top 1,000 (very common) A2 adjective

Competent

Top 2,000 (common) C1 adjective

Most common: Able

	Able	Competent
Pronunciation	🇬🇧 /["/ˈeɪbl/","/ˈeɪblə(r)/","/ˈeɪblɪst/"]/ 🇺🇸 /["/ˈeɪbl/","/ˈeɪblər/","/ˈeɪblɪst/"]/	🇬🇧 /["/ˈkɒmpɪtənt/"]/ 🇺🇸 /["/ˈkɑːmpɪtənt/"]/
Meaning	Having the skill, power, or opportunity to do something.	Able to do something well
Example	She is able to speak three languages.	She is a competent lawyer who always wins her cases.
Register	Neutral	Neutral
How common	Top 1,000 (very common)	Top 2,000 (common)
CEFR level	A2	C1
Part of speech	adjective	adjective
Collocations	be, feel, prove, fully, perfectly, quite, be, seem, extremely, fairly, very	be, feel, look, extremely, fairly, very, in, be, feel, look, extremely, fairly, very, in
Antonyms	unable, incapable	incompetent, inept, unqualified
Common mistakes	Confused with 'capable' — they are similar but not interchangeable., Using 'able' without 'to' when following it with a verb., Incorrectly using 'able' with a past event.	'Competency' is confused with 'competence' despite the latter being more commonly used., Using 'competent' as a noun instead of an adjective., Confusing 'competent' with 'complacent', which means self-satisfied.
Usage notes	Use 'able' to express capability in a neutral context. It’s appropriate in both spoken and written English but avoid using it in overly formal situations.	Use 'competent' to describe someone who can perform a task effectively. It's appropriate in professional or academic contexts, but may sound too formal in casual conversations.

See it in real clips

I want to be able to say things, just one-to-one.

Agents of S.H.I.E.L.D. › S1 E1

I was able to hack S.H.I.E.L.D. from my van.

The Sopranos › S1 E1

that they wouldn't be able to shut him up.

I want to be able to say things, just one-to-one.

Agents of S.H.I.E.L.D. › S1 E1

I was able to hack S.H.I.E.L.D. from my van.

Able

Frequently asked questions: Able vs Competent

What's the difference between Able and Competent?

Able: Having the skill, power, or opportunity to do something. Competent: Able to do something well

Which is more common: Able and Competent?

Able is the most common in everyday English.

Which is more advanced: Able and Competent?

Competent is the highest level, at C1, on the CEFR scale.

Are Able and Competent the same CEFR level?

Able: A2, Competent: C1 on the CEFR scale.

What part of speech are Able and Competent?

Able: adjective, Competent: adjective.

Can you show an example of each?

Able: She is able to speak three languages. Competent: She is a competent lawyer who always wins her cases.

Can I use Able and Competent interchangeably?

Not always. Able and Competent are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.