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KEY: Instinct.
SYN: Prompting, impulse, intuition, inclination.
ANT: Reason, reasoning, abstraction, deliberation, experience, experiment, elaboration, judgment.
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KEY: Instinctive.
SYN: Natural, voluntary, spontaneous, intuitive, impulsive.
ANT: Cultivated, forced, reasoning, rationalistic.
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KEY: Institute.