Irreversible

/ˌɪrəˈvɜːrsəbl/

Meaning & Definition

adjective
Not able to be undone or altered; permanent.
The damage caused by the fire was irreversible, leaving the building in ruins.
Referring to a process that cannot be reversed or taken back.
Once the chemical reaction occurred, the changes to the molecules were irreversible.
In relating to changes that cannot be reverted to their original state.
He realized that the decision to quit his job was irreversible, and he would have to find a new path forward.
Indicating something that cannot return to a previous state or condition.
The voting outcome led to an irreversible shift in the policy direction of the country.

Etymology

From Latin 'ir-' meaning 'not' and 'reversibilis' meaning 'able to be turned back.'

Common Phrases and Expressions

irreversible damage
Damage that cannot be repaired or undone.
irreversible process
A process that cannot revert back to its original state.
irreversible decision
A decision that cannot be changed or reversed.

Related Words

reversible
Able to be turned back to a previous state.
reversibility
The quality of being reversible.

Slang Meanings

Used to describe a major life change that cannot be undone.
Once you quit your job, it's an irreversible step.
Referring to a permanent tattoo or a drastic style change.
Dyeing your hair purple is an irreversible choice.