Blatting is a term often used to describe a loud, unpleasant noise. Synonyms for this word could include: screeching, blasting, howling, bellowing, and caterwauling. These words all have a similar connotation of a harsh, grating sound that is difficult to tolerate. Other possible synonyms for blatting could be roaring, clamoring, wailing, or shrieking. Depending on the context in which the word is being used, other words could also be appropriate, such as trumpeting, honking, or braying. Ultimately, the choice of synonym will depend on the specific situation and the desired effect on the reader or listener.