adjective
1.
marked by a mingling of discordant sounds
the two bands playing different pieces at the same time sounded dissonant
Synonyms: cacophonic, cacophonous, discordant, disharmonic, disharmonious, immusical, inharmonic, inharmonious, rude, unharmonious, unmusical
Related Word: grating, harsh, hoarse, jarring, raucous, rugged, strident
Contrasted words: blending, chiming, concerted, harmonic, symphonious; euphonious, harmonious, mellifluous, mellow, melodious, musical; agreeable, pleasing
Antonyms: consonant
2.
Synonyms: inconsonant 1, conflicting, disconsonant, discordant, discrepant, incompatible, incongruent, incongruous, inconsistent, unmixable