infra dignitatem (L.). Below one's dignity.
in loco parentis (L.). In the place of a parent.
in medias res (L.). Into the midst of things.
in memoriam (L.). To the memory of; in memory.
in perpetuum (L.). For ever.
in posse (L.). In possible existence; in possibility.
in præsenti (L.). At the present moment.
in propria persona (L.). In one's own person.
in re (L.). In the matter of.
in situ (L.). In its original situation.