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Imperceptible vs Unsensible - What's the difference?

imperceptible | unsensible |

As adjectives the difference between imperceptible and unsensible

is that imperceptible is not perceptible, not detectable, too small in magnitude to be observed while unsensible is not sensible; silly, foolish.

imperceptible

English

Adjective

(en adjective)
  • Not perceptible, not detectable, too small in magnitude to be observed.
    • We all missed the imperceptible shake of his head as he tried to warn us without being seen.

    unsensible

    English

    Adjective

    (en adjective)
  • Not sensible; silly, foolish.
  • *{{quote-book, year=1921, author=Sheila Kaye-Smith, title=Joanna Godden, chapter=, edition= citation
    • , passage="Hear, hear," and Joanna passed out of the conversation, for who was going to waste time either taking up or taking down a silly, tedious, foreign, unsensible notion like ploughing grass?... }}
  • That cannot be sensed; imperceptible.
  • *{{quote-book, year=1921, author=William Beebe, title=Edge of the Jungle, chapter=, edition= citation
    • , passage=There is no breeze, no slightest shift of air-particles; yet down the gorge comes this cloud,--a cloud unsensible except to nostrils,--eddying as if swirling around the edges of leaves, riding on the air as gently as the low, distant crooning of great, sleepy jungle doves. }}
  • Out of one's senses; unconscious.