U

ambiguousness

adjective

open to or having several possible meanings or interpretations; equivocal: an ambiguous answer.
Linguistics. (of an expression) exhibiting constructional homonymity; having two or more structural descriptions, as the sequence Flying planes can be dangerous.
of doubtful or uncertain nature; difficult to comprehend, distinguish, or classify: a rock of ambiguous character.
lacking clearness or definiteness; obscure; indistinct: an ambiguous shape; an ambiguous future.

adjective

having more than one possible interpretation or meaning
difficult to understand or classify; obscure

adj.

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.