The Collaborative International Dictionary of English v.0.48:
Dextrous \Dex"trous\, a., Dextrously \Dex"trous*ly\, adv., Dextrousness \Dex"trous*ness\, n. Same as Dexterous, Dexterously, etc. [1913 Webster]WordNet (r) 3.0 (2006):
dextrously adv 1: with dexterity; in a dexterous manner; "dextrously he untied the knots" [syn: dexterously, dextrously, deftly]