The quality or state of being easily agitated, disturbed, or excited into motion or emotion.
From 'agitable' (capable of being agitated) plus the suffix '-ity,' which creates abstract nouns. 'Agitate' derives from Latin 'agitare' meaning 'to drive about or stir up.'
This word reveals something about psychology: people's agitability varies hugely based on temperament and neurochemistry—some brains are literally wired to be more reactive to stimuli, which science is just beginning to map through neurotransmitter studies.
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