unable
/ˌʌnˈeɪbl̩/
ADJECTIVE
1. Not having the ability or capacity to do something
Lacking the physical, mental, practical, or inherent ability to perform an action or accomplish something.
1.1. Lacking ability or capability
Not possessing the necessary ability, skill, or capacity to perform a particular task or activity.
Synonyms
- incapable
- helpless
- powerless
- impotent
- impuissant
- inapt
Antonyms
- able
- capable
- competent
- adept
- skilled
- proficient
Examples
- Despite his best efforts, he remained unable to solve the complex puzzle.
- The injured bird was unable to fly, and a rescue team was called to help.
- She was unable to complete the assignment without additional assistance.
Related Words
- incompetent
- inept
- unskilled
- untrained
- unqualified
- unfit
- inexperienced
1.2. Lacking the power or means to act
Being without sufficient power, resources, equipment, or control to carry out an action or influence a situation.
Synonyms
- powerless
- helpless
- impotent
- inadequate
- unequipped
Antonyms
Examples
- The system failure left users unable to access their accounts.
- Without the necessary equipment, the rescue team was unable to reach the stranded hikers.
- The organization was unable to respond effectively to the unexpected crisis.
Related Words
- inoperative
- out of commission
- sidelined
- disqualified
- incapacitated
- unprepared
1.3. Lacking experience or proficiency
Not having the necessary training, experience, knowledge, or professional competence to perform a particular task successfully.
Synonyms
- incompetent
- inept
- inexpert
- unskilled
- unskillful
- amateurish
- inadequate
Antonyms
- accomplished
- adept
- expert
- experienced
- skilled
- trained
- seasoned
- talented
Examples
- The inexperienced technician was unable to repair the complicated machinery.
- He felt unable to manage the project because he lacked the necessary training.
- The unqualified applicant was unable to meet the professional requirements of the position.
Related Words
- amateur
- novice
- beginner
- inexperienced
- untrained
- unqualified
- unprofessional
- unseasoned
VERB
2. To render someone or something unable to function
To cause someone or something to lose the ability, capacity, or power to perform an action.
2.1. Disabling or incapacitating
To deprive a person or thing of the ability or capacity to function, act, or perform normally.
Synonyms
- disable
- incapacitate
- impair
- cripple
Antonyms
Examples
- The severe injury disabled the athlete and left him unable to compete.
- The technical failure incapacitated the system, making it unable to process requests.
- The accident impaired his mobility and temporarily disabled him.