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imperceptible

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imperceptible

Main Entry:: im·per·cep·ti·ble
Pronunciation:: \ˌim-pər-ˈsep-tə-bəl\
Function:: adjective
Etymology:: Middle English, from Middle French, from Medieval Latin imperceptibilis, from Latin in- + Late Latin perceptibilis perceptible
Date:: 15th century

: not perceptible by a sense or by the mind : extremely slight, gradual, or subtle <imperceptible differences>

— im·per·cep·ti·bly

Listen to the pronunciation of imperceptibly

\-ˈsep-tə-blē\ adverb

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