The Collaborative International Dictionary of English v.0.48:
Abysmally \A*bys"mal*ly\, adv. To a fathomless depth; profoundly. "Abysmally ignorant." --G. Eliot. [1913 Webster]WordNet (r) 3.0 (2006):
abysmally adv 1: in a terrible manner; "she sings terribly" [syn: terribly, atrociously, awfully, abominably, abysmally, rottenly]