perceptible◼◼◼(able to be perceived) adjective [UK: pə.ˈsep.təb.l̩] [US: pər.ˈsep.təb.l̩]
perceptiblement adverbe
perceptibly◼◼◼(in a perceptible manner) adverb [UK: pə.ˈsep.tə.bli] [US: pə.ˈsep.tə.bli]
imperceptibleadjectif
imperceptible◼◼◼(not perceptible) adjective [UK: ˌɪm.pə.ˈsep.təb.l̩] [US: ˌɪm.pər.ˈsep.təb.l̩]The sound was practically imperceptible. = Le son était presque imperceptible.