1. (adj)thump, thumping, clump, clunk, thud a heavy dull sound (as made by impact of heavy objects) Synonyms: clunk, clod, glob, clump, thumping, thud, clustering, bunch, thump, cluster, lump, ball, chunk Antonyms: little, small
2. (adj)humongous, banging, thumping, whopping, walloping (used informally) very large Synonyms: walloping, banging, thumping, humongous, whopping Antonyms: small, little