adj. 1 that cannot be perceived. 2 very slight, gradual, or subtle. imperceptibility n. imperceptibly adv.
[ F imperceptible or med.L imperceptibilis (as IN-(1), PERCEPTIBLE) ]
adj. 1 that cannot be perceived. 2 very slight, gradual, or subtle. imperceptibility n. imperceptibly adv.
[ F imperceptible or med.L imperceptibilis (as IN-(1), PERCEPTIBLE) ]
Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012