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observative

adj.

1610s, from Latin observat-, past participle stem of observare (see observe) + -ive.

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Online Etymology Dictionary, © 2010 Douglas Harper

Related Words for observative

watchful, cautious, respectful, wary, observant, conscious, apprehensive, conversant, cognizant, knowledgeable, vigilant, solicitous, careful, mindful, discerning, discriminating, perceptive, attentive, intelligent, prudent