doubtful or uncertain, particularly in respect to signification; capable of being understood in either of two or more possible senses; equivocal; as, an ambiguous course; an ambiguous expression. What have been thy answers? What but dark, ambiguous, and with double sense deluding? (Milton)
Synonym: doubtful, dubious, uncertain, unsettled, indistinct, indeterminate, indefinite. See equivocal.
Origin: L. Ambiguus, fr. Ambigere to wander about, waver; amb- – agere to drive.