Ambiguous vs Similar Expressions: What's the Difference?

Equivocal makes a claim that ambiguous never makes: that the speaker chose vague or non-committal wording on purpose, to dodge a clear answer. "The clause is ambiguous" stays neutral, about the text. "His answer was equivocal" is a claim about the speaker — reach for it only when the scenario shows that pattern of dodging.

Ambivalent describes a person's own mixed or uncertain feelings — "I'm ambivalent about the offer." Ambiguous never describes a person's internal state; it describes the text, data, or situation they produced or observed.

Vague means the wording lacks enough detail to act on, without necessarily pointing to two distinct competing readings. Ambiguous means you can name two specific things it might mean.

Uncertain or undetermined means a fact simply isn't known or decided yet — the launch date is undetermined. Ambiguous means the wording itself supports two readings right now; nothing about it is waiting on information.

Contradictory or inconsistent means two statements clearly conflict and can't both be true, even though each one is perfectly clear on its own — Section 3 says NET-30, Section 9 says NET-45. Ambiguous means one statement itself supports more than one reading.

Inconclusive means there isn't enough evidence to support any conclusion. Ambiguous data means there's evidence pointing to more than one specific conclusion — the difference is what happens next: inconclusive needs more evidence, ambiguous needs a call between named alternatives.