sub‧lim‧i‧nal /sʌbˈlɪmən
əl, sʌbˈlɪmɪn
əl/ 
 adjective[
Date: 1800-1900; 
Language: Latin; 
Origin: limen;  ⇒ sublime1]
 affecting your mind in a way that you are not conscious of: 
 a subliminal message
 a subliminal message subliminal advertising  (=with hidden messages and pictures in it)
 subliminal advertising  (=with hidden messages and pictures in it)  [TahlilGaran] Dictionary of Contemporary English ▲