From Longman Dictionary of Contemporary Englishstealthystealth‧y /ˈstelθi/ adjective HIDE/MAKE IT HARD TO FIND OR SEEmoving or doing something quietly and secretly the stealthy approach of the soldiers —stealthily adverb
Examples from the Corpus
stealthy• The figure was always just ahead of him, crouched low but quick and stealthy.• The YF-22 proved more manoeuvrable than its opponent, although marginally less stealthy.• And his presence will cause others to become jealous, including the stealthy Jack of All Trades.• There was stealthy movement at the edge of the wood.• the stealthy movements of a hunter• Fifty feet ahead, dolphins cut a stealthy path through oily waters.• Journalists now subject him to the scrutiny he avoided in his stealthy rise.• Somehow it fitted into my stealthy, secretive nature.• Yes, there it was again, a stealthy sound, quite close at hand. 