irreversibly

IPA/ˌɪrɪˈvɜːsəbli/
KK[ˌɪrɪvˈɚsəbli]IPA/ˌɪrɪˈvɜːrsəbli/

irreversibly — adverb

1. so completely that the earlier state cannot be restored

1.adverbC1
Definition

so completely that the earlier state cannot be restored

Example

Years of drought irreversibly changed the small lake near Femi's village.

irreversibly + changed (permanent result)

The fire irreversibly damaged the old theatre before help arrived.

irreversibly + damaged (loss cannot be repaired)

Common collocations
  • irreversibly changed
  • irreversibly damaged
  • irreversibly altered
  • irreversibly affected
  • irreversibly erase
Synonyms
  • irrevocably

    often used for decisions, rights, or legal changes rather than physical damage

  • permanently

    broader and more neutral; it does not always stress that change back is impossible

  • lastingly

    suggests a long effect, but not always a change that can never be undone

Antonyms
  • reversibly

    describes a change that can be turned back to the earlier state

  • temporarily

    shows that the effect will not last and can pass

Grammar Patterns

irreversibly + changed/damaged/altered

irreversibly + affect + object

Usage Note

Often describes damage, change, or loss that cannot be repaired or reversed. It is common with verbs and participles such as change, damage, alter, affect, and erase.

Common Mistakes

The team irreversibly discussed the proposal.
The team's decision irreversibly changed the project.
use 'irreversibly' for results that cannot be undone, not for ordinary actions like discussing.
Her room was irreversibly messy after the party.
Her room was extremely messy after the party.
'irreversibly' describes a permanent change, not a temporary condition.

Word family

Synonym discussion

Sense: adverb/1

For adverb/1, irreversibly stresses that a change cannot be taken back and the earlier state cannot be restored. Irrevocably is close, but it often appears with decisions, rights, or promises rather than physical damage. Permanently is wider and simply means that something will last, so it does not always suggest that reversing it is impossible. Lastingly points to duration and effect over time, but the result may still be changed later. Fatally is stronger and usually means that the result leads to death or complete failure. A forest can be irreversibly damaged, but a plan is more often irrevocably rejected.

irrevocably ↗permanently ↗lastinglyfatally ↗

Common collocations

Nouns

Phrases

  • irreversibly changed
  • irreversibly damaged
  • irreversibly altered

Etymology

LatinEnglish

Irreversibly comes from irreversible plus the adverb ending -ly. Irreversible was built from reverse, which came into English through Latin roots meaning to turn back, with the negative prefix ir- added to show that turning back is not possible.