Main Entry: im·pon·der·a·ble

Pronunciation: \(ˌ)im-ˈpän-d(ə-)rə-bəl\

Function: adjective

Etymology: Medieval Latin imponderabilis, from Latin in- + Late Latin ponderabilis ponderable

Date: 1794

: not ponderable : incapable of being weighed or evaluated with exactness <the imponderable beauties of Beethoven's…sonatas — Cecelia Porter>

— im·pon·der·a·bil·i·ty \-ˌpän-d(ə-)rə-ˈbi-lə-tē\ noun

— imponderable noun

— im·pon·der·a·bly \-ˈpän-d(ə-)rə-blē\ adverb