ANT: Unmindful, careless, heedless, reckless, unheedful.
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KEY: Heedless, [See HEEDFUL].
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KEY: Height.
SYN: Altitude, elevation, tallness, summit, exaltation, culmination, top, apex, climax, acme, crisis.
ANT: Depth, lowness, depression, littleness, base, abasement.
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KEY: Heighten.
SYN: Exalt, increase, enhance, intensify, color, vivify, aggravate, raise, exaggerate, lift up, amplify.