An irrefutable argument or statement cannot be proven wrong; therefore, it must be accepted because it is certain.
An irreproachable person is very honest and so morally upright that their behavior cannot be criticized.
An irrevocable action or decision is impossible to change, reverse, or stop.
Two irreconcilable opinions or points of view are so opposed to each other that it is not possible to accept both of them or reach a settlement between them.
Someone who is irresolute is unable to decide what to do.
Irrelevant information is unrelated or unconnected to the situation at hand.
When an irreversible act is done, it cannot be undone or fixed in any way.
Something irregular does not act normally; rather, it acts in an unusual way.
not consistent with or using reason
impossible to resist
impossible to recover or recoup or overcome
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