noisy 2 antonyms and opposites of noisy. Adj — Making a loud or unpleasant sound. Synonyms for noisy blaring blasting booming cacophonous clangorous clamorous clattering deafening dinsome earsplitting loud obstreperous piercing rackety raucous resounding roisterous rowdy strident strepitous thundering tumultuous uproarious vociferous Antonyms for noisy quiet silent ← Back to the full definition of noisy