vaniloquy means idle or vain talk. Lexicurio rates it Sui generis — a strength score of 100 out of 100.
Why “vaniloquy” is a great word
VANILOQUY — [Noun] Idle, empty, or foolish speech. From Latin vāniloquium, from vānus ("empty, vain") and loquī ("to speak"). First attested in English in 1623. Unlike "soliloquy," a dramatic, self-directed speech that reveals inner truth, or "obloquy," a torrent of censure aimed to wound, vaniloquy is the hollow noise of words that carry no freight of meaning or malice. It is the droning pleasantries at a mandatory reception, the polished filler of a speech that decides nothing, the soft susurrus of compliments exchanged where no affection lies—the sound we make to prove we are not alone in the silence, and in doing so, confirm that we are.
Etymology
From Latin vāniloquium. See -loquy.
noun
- Idle or vain talk.“much Babbling, Dicacity, Vaniloquy.”