imperceivable
21indiscernable — adj 1. imperceptible, imperceivable, indistinguishable, unnoticeable, unapparent, subtle, slight, gradual; inappreciable, inconsiderable, inconsequential; minute, minuscule; microscopic, infinitesimal. 2. invisible, unseeable, unperceptible; ill… …
22invisible — adj 1. imperceivable, imperceptible, indiscernible, indistinguishable, unseeable. 2. hidden, concealed, veiled, shrouded, enshrouded, screened, cloaked; disguised, masked, camouflaged; unseen, unnoticed, unobserved, unbeheld, unper ceived. 3.… …
23sightless — adj 1. blind, visionless, unsighted, unseeing, eyeless, stone blind, amaurotic; purblind, partially sighted, blear eyed, Opthalmol. hemeralopic, Opthalmol. nyctalopic. 2. invisible, imperceivable, imperceptible, indiscernible, indistinguishable,… …
24hidden — [adj] unseen, secret abstruse, buried, clandestine, cloaked, close, clouded, concealed, covered, covert, cryptic, dark, disguised, eclipsed, esoteric, hermetic, hermetical, imperceivable, indiscernible, in the dark, invisible, latent, masked,… …
