Atonal

Meaning: Not written in any key or mode.

Synonyms: Discordant, harsh, loud, strident, absonant, acute, blaring, dissonant, blatant, braying, brusque, cacophonous, gruff, squawking, stertorous, unharmonious, husky.

In Hindi: अतान

Use: I heard a new voice floating above the atonal music.

The atmosphere was filled with an eerie, atonal melody.