preposterousness, n. 1. unreasonableness, irrationality, irrationalness, illogic, illogicalness, illogicality, meaninglessness, senselessness; incongruity, inconsistency, groundlessness; extravagance, excess, excessiveness, outrageousness, exaggeration, hyperbole; incredibleness, unbelievability, unthinkableness, impossibility.
2. folly, foolishness, ridiculousness, ridiculosity, ludicrousness, absurdity, absurdness; nonsensicalness, nonsensicality, nonsense, silliness, inanity; idiocy, lunacy, madness, craziness, Sl. screwiness; imbecility, stupidity, asininity, idioticalness.
prerequisite, adj. 1. necessary, needful, needed, wanted; essential, indispensable, requisite, unavoidable, necessitous; imperative, demanded, required, called for.
-n. 2. requisite, necessity, necessary, necessaries, need; essential, Latin, sine qua non, the essentials; imperative, demand, requisition, requirement, prerequirement, obligation.
3. condition, provision, proviso, stipulation, qualification; specification, terms, Inf. fine print, Inf. catch.
prerogative, n. right, liberty, choice, privilege, rightful power, due, droit, authority; claim, pretension, demand; birthright, advantage, title; authorization, Law. prescription, license, legal power, franchise, grant; sanction, vouchsafement, permission, allowance, leave, consent, Inf. O.K.; blanket permission, unconditional authority, carte blanche, Sl. the run of the place; exemption, exception, immunity,
presage, n. 1. presentiment, foreboding, feeling, vague feeling, Inf. funny feeling, Inf. feeling in one's bones, suspicion, Inf. sneaking suspicion, Inf hunch, intuition; anxiety, misgiving, apprehension, apprehensiveness, boding; dread, fear, ill feeling, chill along the spine, Sl. bad vibes.
2. omen, sign, portent, token, foretoken, harbinger; prognostic, prognostication, bodement, prediction, soothsaying, forecast, prophecy, prefigurement, augury, auspice, vaticination, divination; premonition, indication, preindication, forewarning, foreshadowing, handwriting on the wall.
3. foresight, prevision, prescience, foreknowledge, clairvoyance, clairvoyancy, precognition, second sight, -v. 4. sense, intuit, feel, foresee, have a feeling,
Inf. have a funny feeling, Inf. feel in one's bones.
5. foreshadow, forebode, foretoken, foreshow, prefigure, presignify, preindicate; augur, portend, bode, omen; betoken, signify, mean, indicate, point to.