Definition of "underivative" []

• Not derivative. (adjective)

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• "Although Aquinas subscribes to Aristotle's thesis that practical reasonableness (phronesis, prudentia) concerns means rather than ends, he eliminates any quasi-Humeian reading of that thesis by emphasizing that what “moves” prudentia is not one's passions but one's underivative understanding of the first practical principles and of the intelligible goods to which they point (synderesis movet prudentiam: ST II-II q. 47 a. 6 ad 3)."
• "The duty to promote others 'good was an underivative one for which no deeper explanation could be given and which could only be recognized by intuition."
• "If he was funny he was also original, full of his own underivative flavour; if he was drab-colour, he was also beautiful."