Noun: tidy sum
- (often followed by ‘of’) a large number, amount or extent
"He inherited a tidy sum from his grandmother";
- batch, deal, flock, good deal, great deal, hatful, heap, lot, mass, mess, mickle [archaic], mountain, muckle, passel [US], peck, pile [informal], plenty, pot, quite a little, raft, sight, slew, spate, stack [informal], wad, bunch [informal], scad [N. Amer, informal]
Derived forms: tidy sums