The Collaborative International Dictionary of English v.0.48:
Thoroughly \Thor"ough*ly\, adv. In a thorough manner; fully; entirely; completely. [1913 Webster]WordNet (r) 3.0 (2006):
thoroughly adv 1: in an exhaustive manner; "we searched the files thoroughly" [syn: thoroughly, exhaustively] 2: completely and absolutely (`good' is sometimes used informally for `thoroughly'); "he was soundly defeated"; "we beat him good" [syn: thoroughly, soundly, good]