Longman Dictionary of Contemporary English homepage

Date: 1300-1400
Language: Latin
Origin: irrevocabilis, from revocare; REVOKE

irrevocable

 adjective
     
ir‧rev‧o‧ca‧ble
an irrevocable decision, action etc cannot be changed or stopped:
Think about the situation carefully before you take an irrevocable step.
—irrevocably adverb:
machines that irrevocably changed the pattern of rural life
WORD FOCUS: change WORD FOCUS: change
to change something: alter, adapt, adjust, amend, modify, revise, vary
to change a system or organization: restructure, reorganize, reform
to change something completely: transform, revolutionize
to change facts or information, or change what someone has said: twist, distort, misrepresent
easily changed: flexible, adaptable
impossible to change: fixed, final, irrevocable

➔ See also change
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

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