ANT: Defunct, lost, obsolete, past.
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KEY: Extempore.
SYN: Offhand, unpremeditated.
ANT: Studied, prepared, premeditated.
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KEY: Extend.
SYN: Prolong, stretch, expand, enlarge, increase, augment, reach, spread, amplify, avail, apply.
ANT: Curtail, contract, restrict, narrow, limit, recur, return, miss, fail.
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