ambiloquy means ambiguous language. Lexicurio rates it Sui generis — a strength score of 87 out of 100.
Why “ambiloquy” is a great word
AMBILOQUY — [Noun] Speech or writing that is deliberately ambiguous, structured to support two possible interpretations. From Medieval Latin ambiloquium, from Latin ambo ("both, two") + loquor ("to speak"). First attested in 1727. Unlike circumlocution, which pads a thought with excess verbiage, or equivocation, which employs ambiguity with deceptive intent, ambiloquy is the architecture of the two-sided statement itself—a forked path built into the sentence. It is the politician's non-answer that leaves each faction claiming victory, the oracle's prophecy that foretells both triumph and ruin, and the lover's promise that flickers between devotion and farewell: the definitive escape hatch built into the foundation of a statement, a door held open just a crack so it may later be claimed it was never truly shut.
Etymology
Borrowed from Medieval Latin ambiloquium, from ambo (“two”) + loquor (“speak”).