Apa itu nonsense? Apa itu nonsense? Words or signs having no intelligible meaning: a message that was nonsense until decoded. Subject matter, behavior, or language that is foolish or absurd.Extravagant foolishness or frivolity: a clown's exuberant nonsense. Matter of little or no importance or usefulness: a chatty letter full of gossip and nonsense. Insolent talk or behavior; impudence: wouldn't take any nonsense from the children. Genetics Of or relating to a mutation in a structural gene that changes a nucleotide triplet into a stop codon, thus prematurely terminating the polypeptide chain during protein synthesis.Used to express disagreement or exasperation.