imperdable, adj., (of law-suits, of games) that cannot be lost.
imperfectibilité, n.f., imperfectibility.
imperfectible, adj., imperfectible.
imperfection, n.f., imperfection.
imperforation, n.f., (med.) imperforation.
imperforé, -e, adj., (med.) imperforated.
impérial, -e, adj., imperial.
impériale, n.f., roof, outside (of a coach); all-fours (cards); imperial serge; (bot.) imperial; melon pompion; imperial (under the lip).
impérialement (-al-mān), adv., imperially.
impérialiste, n.m., imperialist.