n. a wall of water rushing ahead of the flood; as, we were lucky to be safe when the floodheads hit.. [ WordNet 1.5 ]
adj. 1. covered or overflowing with water. Syn. -- afloat(predicate), awash(predicate). [ WordNet 1.5 ]
2. filled to overflowing as if with water; as, a desk flooded with applications. Syn. -- inundated, swamped. [ WordNet 1.5 ]