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KEY: Improvement.
SYN: Advancement, amendment, progress, increase, correction, proficiency.
ANT: Degeneracy, degeneration, deterioration, debasement, retrogradation, retrogression.
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KEY: Improvident.
SYN: Imprudent, i wasteful, prodigal, reckless, careless, thoughtless, shiftless.
ANT: Prudent, careful, saving, economical, provident, [See COMMON].
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KEY: Impudent.