Antonyms

Surfeit means an excessive amount or overabundance. While 'scarcity' would be its most direct opposite, 'necessity' is contextually appropriate as the opposite of excess/surplus. Assuage means to soothe, restrain means to hold back, and regulate means to control - none are direct opposites of surfeit.

Supposition is similar in meaning to certainity because it refers to a strongly held belief that lacks proof.

List as a verb means to lean or tilt to one side (like a ship listing). To remove that lean means to make something upright or straight. The other options describe physical positions but do not convey the corrective action needed to counteract a list.

Abhor means to hate, detest, or regard with disgust. The opposite is to love, admire, or have strong positive feelings toward something. Greatly admire directly reverses the emotional polarity of abhorrence.

 Pungent means odorous in a stinking foul manner, therefore sweetness is the word most opposite in meaning.

 Rue is repentance on something not done well; heartiness is something done with full vigour.

Tractability refers to the quality of being easily controlled, managed, or reformed. Incorrigibility means the quality of being impossible to correct, reform, or change - directly opposing tractability. The other options describe unrelated concepts.

Boisterous means noisy, energetic, and rough in a lively way. Quiet is the direct opposite - calm, silent, and lacking in noisy energy. The other options describe emotions or intelligence levels, not energy/noise levels.

Offhand means casual, spontaneous, or done without prior preparation. Planned is the direct opposite - done with forethought, preparation, and deliberation. The other options describe qualities unrelated to preparation or spontaneity.

Immediate means happening instantly or without delay. Later is the direct temporal opposite - happening at a subsequent time. The other options describe complexity, quantity, or exertion levels, not timing.

Bolster means to support, strengthen, or reinforce something. Decrease (as in to reduce support) works as the opposite in this context - to weaken or reduce the support for something. The other options are less directly opposite to bolster's meaning of reinforcement.

Pristine means in original, clean, and unspoiled condition. Contaminated is the direct opposite - polluted, made impure, or dirtied. The other options describe moral qualities or attractiveness, not physical condition.

Instinct refers to innate, natural behavior or responses (not learned). Learned response is the direct opposite - behavior acquired through training and experience rather than being inborn. The other options describe psychological concepts unrelated to the nature of behavioral origins.

Alleviate means to make something less severe, painful, or burdensome - to relieve. Exacerbate means to make worse, more severe, or more intense - directly opposite in effect. The other options describe different actions not specifically about making conditions worse.

Proliferate means to increase rapidly in number, to multiply, or grow abundantly. Diminish means to become smaller, fewer, or less - directly opposite in numerical direction. While 'restrict' could also be opposite, diminish more directly counters the numerical increase aspect of proliferation.

 Sensation refers to the senses so in this sense, it refers to a feeling of type which is tangible. The opposite of this is partial dullness.

 Dessicate means to remove water or dehydrate so that what is left is a powder.

Affable means friendly, good-natured, and easy to talk to. Irascible means easily provoked to anger, irritable, or quick-tempered - directly opposite in social disposition. The other options describe different negative traits not specifically opposing friendliness.

Inadvertent means unintentional or accidental. Intentional means done on purpose, which is the direct opposite. The other options do not convey the opposite meaning.

Inundate means to flood, overwhelm, or cover with water. Drain means to remove liquid, which is the direct opposite action. The other options do not convey removing liquid.

Fatuity means foolishness, stupidity, or silliness. Sagacity means wisdom and sound judgment, which is the direct opposite quality.

Sate means to satisfy fully, especially with food or drink. Starve means to deprive of food, which is the direct opposite state.

Quack refers to a fraudulent or pretentious practitioner, especially in medicine. Honest practitioner is the direct opposite - someone legitimate and genuine.