SYN: Introduction, preparation, preface, proem, {[preli*ion]?}, overture, [See PREFACE].
ANT: Sequel, conclusion.
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KEY: Premature.
SYN: Hasty, crude, unauthenticated, untimely, precocious, precipitate, too early, rash, unseasonable.
ANT: Ripe, timely, seasonable, opportune.
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KEY: Premeditate.
SYN: Plan, propose, plot, prearrange, prepare, precompose, preconcert.
ANT: Extemporize, hazard.