Definition: (noun) (Often followed by "of") a large number or amount or extent. Synonyms: great deal, hatful, lot, peck, mickle, mint, quite a little, slew, spate, tidy sum, wad, stack, raft, mountain, pile, plenty, mass, batch, heap, deal, flock, pot, mess, sight. Usage: The President faces a passel of domestic issues. Discuss