| existing or operating below the threshold of consciousness; being or employing stimuli insufficiently intense to produce a discrete sensation but often being or designed to be intense enough to influence the mental processes or the behavior of the individual: a subliminal stimulus; subliminal advertising. |
subliminal sub·lim·i·nal (sŭb-lĭm'ə-nəl)
adj.
Below the threshold of conscious perception. Used of stimuli.
Inadequate to produce conscious awareness but able to evoke a response.