incapable

adjective

in·​ca·​pa·​ble (ˌ)in-ˈkā-pə-bəl 

1

: lacking capacity, ability, or qualification for the purpose or end in view: such as

a

: not able or fit for the doing or performance : incompetent

b

: not being in a state or of a kind to admit : insusceptible

c

archaic : not able to take in, hold, or keep

d

archaic : not receptive

2

: lacking legal qualification or power (as by reason of mental incompetence) : disqualified

incapability

(ˌ)in-ˌkā-pə-ˈbi-lə-tē 

noun

incapableness

(ˌ)in-ˈkā-pə-bəl-nəs 

noun

incapably

(ˌ)in-ˈkā-pə-blē 

adverb

Synonyms

• inapt
• incompetent
• inept
• inexpert
• unable
• unfit
• unfitted
• unqualified
• unskilled
• unskillful

Examples of incapable in a Sentence

hired a supremely incapable assistant who only made a mess of things

Recent Examples on the Web

Most of my extended family is incapable of punctuality, so my immediate family would often wait at the bar for the rest of our party to arrive. —Jenn Harris, Los Angeles Times, 8 July 2024

This panel should examine both Joe Biden and Donald Trump to determine if either is incapable of performing the duties of the presidency. —Voice Of The People, New York Daily News, 7 July 2024

For years now, London has shown itself to be incapable of solving large-scale problems or giving all citizens the belief that the central institutions of power belong to them. —Fintan O’Toole, Foreign Affairs, 5 July 2024

Forrest is a war hero, college graduate, and gazillionaire, but a couple of measly IQ points, and he is automatically filed as incompetent and incapable. —Ciara Moloney, IndieWire, 4 July 2024

Word History

Etymology

Middle French, from in- + capable capable

First Known Use

1594, in the meaning defined at sense 1

Kids Definition

incapable

adjective

in·​ca·​pa·​ble (ˈ)in-ˈkā-pə-bəl 

: not able to do something

incapable of cleaning her room thoroughly

incapability

(ˌ)in-ˌkā-pə-ˈbil-ət-ē 

noun

Legal Definition

incapable

adjective

in·​ca·​pa·​ble

: lacking legal qualification or power (as by reason of mental incompetence) see also incapacity