unable

[uhn-ey-buhl]

adjective

1. lacking the necessary power, competence, etc., to accomplish some specified act.

   He was unable to swim.

unable

/ ʌnˈeɪbəl /

adjective

1. lacking the necessary power, ability, or authority (to do something); not able

2. archaic,  incompetent

Word History and Origins

Origin of unable¹

First recorded in 1350–1400; Middle English; un- ¹ + able

Synonym Study

See incapable.

Example Sentences

They said another man died after he was found floating near a beach at El Cabezo in the south, with lifeguards and medical staff unable to resuscitate him.

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Criticisms included issues with patient safety and pressures on staff, with some still feeling unable to speak up about their concerns.

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The economic impact has been significant, with local businesses reporting decreased commerce and residents unable to move freely throughout their neighborhoods without fear.

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The document says clearly that the person has to be unable to do the task themselves.

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In July they were unable to agree on the appointment of three judges to the constitutional court, with the conservatives considering the Social Democrats' candidate too left-wing.

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Related Words

• helpless 
• impotent 
• inadequate 
• incapable 
• not able 
• powerless 
• sidelined www.thesaurus.com
• unfit 
• weak