irreversible

As adjectives the difference between irreversible and permanent

is that irreversible is incapable of being reversed or turned about or back; incapable of being made to run backward while permanent is without end, eternal.

As a noun permanent is

a chemical hair treatment imparting or removing curliness, whose effects typically last for a period of weeks; a perm.

As a verb permanent is

to perm (the hair).

As adjectives the difference between irreparable and irreversible

is that irreparable is incapable of being repaired, amended, cured or rectified while irreversible is incapable of being reversed or turned about or back; incapable of being made to run backward.

Peremptory is a synonym of irreversible.

As adjectives the difference between peremptory and irreversible

is that peremptory is (legal) precluding debate or expostulation; not admitting of question or appeal; positive; absolute; decisive; conclusive; final while irreversible is irreversible.

As adjectives the difference between unreversible and irreversible

is that unreversible is not reversible while irreversible is incapable of being reversed or turned about or back; incapable of being made to run backward.

As adjectives the difference between irreversible and unchangeable

is that irreversible is incapable of being reversed or turned about or back; incapable of being made to run backward while unchangeable is not changeable; incapable of being changed or of changing; immutable.

As a noun unchangeable is

something that cannot be changed.

As adjectives the difference between irreversible and incontrovertible

is that irreversible is incapable of being reversed or turned about or back; incapable of being made to run backward while incontrovertible is not capable of being denied, challenged, or disputed; closed to questioning.

Absolute is a related term of irreversible.

As a noun absolute

is (philosophy) that which is totally unconditioned, unrestricted, pure, perfect, or complete; that which can be thought of without relation to others .

As an adjective irreversible is

irreversible.

As adjectives the difference between irreversible and decisive

is that irreversible is incapable of being reversed or turned about or back; incapable of being made to run backward while decisive is having the power or quality of deciding a question or controversy; putting an end to contest or controversy; final; conclusive.

Irreversible is a related term of unavoidable.

As adjectives the difference between irreversible and unavoidable

is that irreversible is irreversible while unavoidable is impossible to avoid; bound to happen.

As a noun unavoidable is

something that cannot be avoided.

Irreversible is a related term of obligatory.

As adjectives the difference between irreversible and obligatory

is that irreversible is irreversible while obligatory is imposing obligation, morally or legally; binding.