Unfaithfulness by virtue of being unreliable or treacherous.

synonyms: faithlessness, falseness, inconstancy.

Roget 605: irresolution, infirmity of purpose, indecision; indetermination, undetermination^†; unsettlement; uncertainty etc. 475; demur, suspense; hesitating etc. v., hesitation, hesitancy; vacillation; changeableness etc. 149; fluctuation; alternation etc. (oscillation) 314; caprice etc. 608.    fickleness, levity, legerete [Fr.]; pliancy etc. (softness) 324; weakness; timidity etc. 860; cowardice etc. 862; half measures.    waverer, ass between two bundles of hay; shuttlecock, butterfly; wimp; doughface [U.S.].    ... show more

Dutch: wispelturigheid, onbetrouwbaarheid
Polish: wiarołomność