From BiblePortal Wikipedia

Webster's Dictionary [1]

(1): (superl.) Harsh and offensive, as a color; tawdry or in bad taste, as a combination of colors, or any design or work of art.

(2): (superl.) Unripe; not mature or perfect; immature.

(3): (superl.) Not reduced to order or form; unfinished; not arranged or prepared; ill-considered; immature.

(4): (superl.) Undigested; unconcocted; not brought into a form to give nourishment.

(5): (superl.) In its natural state; not cooked or prepared by fire or heat; undressed; not altered, refined, or prepared for use by any artificial process; raw; as, crude flesh.

(6): (superl.) Having, or displaying, superficial and undigested knowledge; without culture or profundity; as, a crude reasoner.

King James Dictionary [2]

Crude, a. L. G.

1. Raw not cooked or prepared by fire or heat in its natural state undressed as crude flesh crude meat. In this sense, raw is more generally used. 2. Not changed from its natural state not altered or prepared by any artificial process as crude salt crude alum. 3. Rough harsh unripe not mellowed by air or other means as crude juice. 4. Unconcocted not well digested in the stomach. 5. Not brought to perfection unfinished immature as the crude materials of the earth. 6. Having indigested notions. 7. Indigested not matured not well formed, arranged, or prepared in the intellect as, crude notions a crude plan a crude theory.