1. not appropriate in application; defective - an infelicitous remark - infelicitous phrasing - the infelicitous typesetting was due to illegible copy • Ant: felicitous • Similar to: awkward, clumsy, cumbersome, inapt, inept, ill-chosen, unfortunate • See Also: unhappy • Derivationally related forms: infelicity • Attrubites: felicity, felicitousness 2. marked by or producing unhappiness - infelicitous circumstances - "unhappy caravans, straggling afoot through swamps and canebrakes"- American Guide Series • Syn: unhappy • Similar to: unfortunate