This word is acceptable for play in the UK dictionary that is being used in the following games:

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adj. Not apprehending.

Not apprehensive; not fearful or suspecting.

Not intelligent; not ready of conception, perception, or understanding.

Unconscious; not cognizant.

adj. not recognizing or slow to recognize danger

"It is dangerous for youth to behold beauty in the pomp of all her charms, with every look bent upon conquest — more dangerous to see her in the hour of unaffected and unapprehensive ease and simplicity, yielding herself to the graceful whim of the moment, and as willing to be pleased as desirous of pleasing."

fearless    unafraid   

mannerless    non-aesthetic    doubtful    will-less    shepherd-boy