1. (a.) Inward; interior; being within any limit or surface; enclosed; -- opposed to external; as, the internal parts of a body, or of the earth.

2. (a.) Derived from, or dependent on, the thing itself; inherent; as, the internal evidence of the divine origin of the Scriptures.

3. (a.) Pertaining to its own affairs or interests; especially, (said of a country) domestic, as opposed to foreign; as, internal trade; internal troubles or war.

4. (a.) Pertaining to the inner being or the heart; spiritual.

5. (a.) Intrinsic; inherent; real.

6. (a.) Lying toward the medial plane; medial.

bosom center central cerebral conceptive conceptual core deep deep-seated deepest recesses endopsychic esoteric gut heart heart of hearts home immanent implanted implicit inalienable indoor indwelling infixed ingrained inherent inland inmost inner inner landscape inner life inner man inner nature inner recess inner self innermost inside intellectual intelligent interior interior man intern intestine intimate intrados intrinsic inward inwrought irreducible mental municipal national native noetic noological penetralia phrenic private psychic psychologic rational reasoning recesses resident secret secret place secret places soul spiritual subjective thinking unalienable unchallengeable unquestionable visceral vital center vitals