A nameless ecstacy thrilled through my frame when any new proof occurred that the ambiguousness of my behaviour was the cause.
I have tried to render approximately the ambiguousness of the original.
Let the ambiguous procession of events reveal their own ambiguousness.
Of course he would see to it that not a shadow of ambiguousness was allowed to rest on such a name.
1520s, from Latin ambiguus "having double meaning, shifting, changeable, doubtful," adjective derived from ambigere "to dispute about," literally "to wander," from ambi- "about" (see ambi-) + agere "drive, lead, act" (see act). Sir Thomas More (1528) seems to have first used it in English, but ambiguity dates back to c.1400. Related: Ambiguously; ambiguousness.