subliminal
AdjectiveUS[suh-blim-ih-nuhl]/səˈblɪmɪnəl/4 syllables
Open English WordNet
Adjective (1)
- below the threshold of conscious perceptionOpposite perceptibleSimilar imperceptible, unperceivable
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haphazardadjective
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Webster's Dictionary (1913)
Sub·lim′i·nal adjective
Origin: Pref. sub- + L. limen threshold.
1. Philos. Existing in the mind, but below the surface or threshold of consciousness; that is, existing as feeling rather than as clear ideas.
2. having or using an intensity of sensory stimulus insufficient to be perceived consciously, but having an effect on unconscious mental processes; as, subliminal advertising. The existence of such an effect is still not universally accepted.
Webster’s Revised Unabridged Dictionary (1913), from GCIDE 0.54 · with additions: 1913 supplement, GCIDE editors