invisibly

English Thesaurus

1. without being seen (adv.all)

antonym	:	visibly,
definition	:	in a visible manner (adv.all)

pertainym	:	invisible, unseeable,
definition	:	impossible or nearly impossible to see; imperceptible by the eye (adj.all)

antonym	:	visibly,
definition	:	in a visible manner (adv.all)

pertainym	:	invisible, unseeable,
definition	:	impossible or nearly impossible to see; imperceptible by the eye (adj.all)