Synonyms of imperceptible in English:

imperceptible


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See Spanish definition of imperceptible

adjective

1‘the change was slow and imperceptible’

SYNONYMS
unnoticeable, undetectable, indistinguishable, indiscernible, unapparent, inappreciable, invisible, inaudible, impalpable, unobtrusive, impossible to detect
slight, small, subtle, faint, fine, inconsequential, negligible, tiny, minute, minuscule, microscopic, nanoscopic, infinitesimal
indistinct, unclear, obscure, vague, indefinite, shadowy, hard to make out
ANTONYMS

obvious, noticeable