ETYM Latin ambiguus, from ambigere to wander about, waver; amb- + agere to drive.
1. Having more than one possible meaning.
2. (Psychology) Having no intrinsic or objective meaning; not organized in conventional patterns.
3. Of uncertain meaning.

ETYM Latin aequivocus: aequus equal + vox, vocis, word. Related to Equal, and Voice, Equivoque.
1. Open to question.
2. Open to two or more interpretations; or of uncertain nature or significance; or (often) intended to mislead.
3. Uncertain as a sign or indication.