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

This isn’t to say that Leith and Hollywood are incapable of doing their job because of their age. —Fran Hoepfner, Vulture, 28 Nov. 2024

This rhetoric continues conservatives’ history of weaponizing research showing that trans people are more likely to be diagnosed as autistic than cis people in order to baselessly argue that trans youth — and autistic people — are incapable of making their own decisions about their healthcare care. —Abby Monteil, Them, 26 Nov. 2024

Shostakovich is reduced to a hapless victim of circumstance, incapable of speaking in an independent voice. —Alex Ross, The New Yorker, 21 Nov. 2024

Surrender, then, will come not when the opponent’s numbers are diminished and its armory empty but when the survivors’ shield of silicon is rendered incapable of saving its technological assets—and finally its human deputies. —Henry A. Kissinger, Foreign Affairs, 18 Nov. 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