Main Entry:

im·pos·si·ble

Pronunciation:

\(ˌ)im-ˈpä-sə-bəl\

Function:

adjective

Etymology:

Middle English, from Anglo-French & Latin; Anglo-French, from Latin impossibilis, from in- + possibilis possible

Date:

14th century

1 a: incapable of being or of occurring b: felt to be incapable of being done, attained, or fulfilled : insuperably difficult <an impossible deadline>2 a: extremely undesirable : unacceptable b: extremely awkward or difficult to deal with <the actor was impossible on the set>

— im·pos·si·ble·ness noun