- 1great enough for you to notice it synonym noticeable a perceptible change/increase/decline/impact The price increase has had no perceptible effect on sales. Her foreign accent was barely perceptible.
- 2(technology) that you can notice or feel with your senses the perceptible world opposite imperceptible Word Familyperceive verbperception nounperceptive adjectiveperceptible adjective (≠imperceptible)
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NAmE//pərˈsɛptəbli//adverb Income per head rose perceptibly. It was perceptibly colder. His voice softened perceptibly.