UNTHINKING

unthinking. Unthinking, a. thoughtless, careless, giddy, idle

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Un‐think″ing, a. 1. 1. Not thinking; not heedful; thoughtless; inconsiderate; as, unthinking youth.
2. 2. Not indicating thought or reflection; thoughtless.
With earnest eyes, and round unthinking face, He first the snuffbox opened, then the case. Pope. — Un‐think″ing‐ly, adv. — Un‐think″ing‐ness, n.