Affirmative antithesis joins opposed meanings without making the negation of the same action the main device. “He gives life and causes death” contrasts two related acts.
Negative antithesis emphasizes a positive and negative form of a related act or an imperative/prohibition contrast. “They know” and “they do not know” is a representative structure.
TypeCharacteristic
AffirmativeOpposed meanings without simple direct negation
NegativePositive and negative forms of related meaning