The Collaborative International Dictionary of English v.0.48:

Preconscious \Pre*con""scious\, a.
   Of or pertaining to a state before consciousness.
   [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

33 Moby Thesaurus words for "preconscious":
   anima, coconscious, collective unconscious, conscience,
   conscious self, death instinct, ego, ego ideal, ego-id conflict,
   ethical self, foreconscious, id, libidinal energy, libido, mind,
   motive force, persona, personality, pleasure principle,
   primitive self, psyche, psychic apparatus, racial unconscious,
   self, subconscious, subconscious mind, subliminal, subliminal self,
   submerged mind, superego, unconscious, unconscious mind,
   vital impulse