irreversible
🇺🇸 /ˌɪrɪˈvɜrsəbəl/
📖 Definitions
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adjective
Not able to be undone, reversed, or returned to a previous state or condition.; (Thermodynamics) Describing a process that cannot be reversed without leaving a net change in the system or surroundings.; (Chemistry) Describing a reaction that proceeds in one direction only and does not reach equilibrium with the reverse reaction.; (Medicine) Describing a condition or change that cannot be cured or restored to normal.
🔗 Details
Word forms
Comparative: more irreversible
Superlative: most irreversible
Collocations
irreversible damageirreversible changeirreversible processirreversible declineirreversible trendirreversible loss
Derivatives
irreversiblyirreversibilityreversiblereversereversal
Synonyms
permanentirrevocablefinalunalterableirremediableincurable
Antonyms
reversibletemporaryrevocable
Commonly confused
irrevocable
EN: 'Irrevocable' typically refers to decisions, commitments, or legal acts that cannot be withdrawn; 'irreversible' refers to processes or changes that cannot be undone.
irremediable
EN: 'Irremediable' emphasizes that something cannot be fixed or corrected; 'irreversible' emphasizes that something cannot be returned to its prior state.
Spelling tips
EN: Remember the prefix 'ir-' (assimilated form of 'in-') before 'r', resulting in double 'r': 'irreversible', not 'inreversible' or 'ireversible'.
💬 Examples
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The patient suffered irreversible brain damage due to lack of oxygen.
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Heat transfer across a finite temperature difference is an irreversible process.
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The combustion of gasoline is essentially an irreversible reaction.
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The doctor confirmed that the damage to the optic nerve was irreversible.