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in- / im- / il- / ir-

not, without

Latin · in- (negative)

Latin in- means not. It changes to im- before b, m, p; il- before l; ir- before r. It reverses an adjective: possible becomes impossible, legal becomes illegal.

Memory trick

in- is a NO sign stuck on the front: visible, but in-visible means you cannot see it.

Words from this root