IMPOSSIBLE

adjective Etymology: Middle English, from Anglo-French & Latin; Anglo-French, from Latin impossibilis, from in- + possibilis possible Date: 14th century 1. incapable of being or of occurring, felt to be incapable of being done, attained, or fulfilled ; insuperably difficult , 2. extremely undesirable ; unacceptable , extremely awkward or difficult to deal with , ~ness noun