ANT: Common, frequent, abundant, valueless, thick, plentiful.

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KEY: Scarcity.

SYN: Deficiency, lack, infrequency, want, dearth, rarity.

ANT: Plenty, abundance, frequency.

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KEY: Scare.

SYN: Terrify, affright, intimidate, frighten, deter, dismay, daunt.

ANT: Reassure, encourage, entice, allure.

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