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Having no force, effect, or efficacy; void; null; as, an invalid contract or agreement.

To render invalid; to weaken or lessen the force of; to destroy the authority of; to render of no force or effect; to overthrow; as, to invalidate an agreement or argument.

The act of inavlidating, or the state of being invalidated. So many invalidations of their right. Burke.

See Invalid, n.

The condition of an invalid; sickness; infirmity.

Want of validity or cogency; want of legal force or efficacy; invalidness; as, the invalidity of an agreement or of a will.

Invalidity; as, the invalidness of reasoning.

The act of annulling; abolition; invalidation.

tained from the rootstocks of Maranta arundinacea, and used as food, esp. for children an invalids; also, a similar starch obtained from other plants, as various species of Maranta and Curcuma.

To defeat or evade; to invalidate. Thus, in a replication, the plaintiff may deny the defendant's plea, or confess it, and avoid it by stating new matter. Blackstone.

Capable of being vacated; liable to be annulled or made invalid; voidable. The charters were not avoidable for the king's nonage. Hale.

eaning knives, polished metal, etc. -- Bath chair, a kind of chair on wheels, as used by invalids at Bath. "People walked out, or drove out, or were pushed out in their Bath chairs." Dickens. -- Bath metal, an alloy consisting of four and a half ounces of zinc and one pound of copper. -- Bath note, a folded writing…

ee Counter brace, in Vocabulary. -- Counter deed (Law), a secret writing which destroys, invalidates, or alters, a public deed. -- Counter distinction, contradistinction. [Obs.] -- Counter drain, a drain at the foot of the embankment of a canal or watercourse, for carrying off the water that may soak through. -- Cou…

A sick person; an invalid. [Obs.] Thou art a counterfeit crank, a cheater. Burton. Crank axle (Mach.), a driving axle formed with a crank or cranks, as in some kinds of locomotives. -- Crank pin (Mach.), the cylindrical piece which forms the handle, or to which the connecting rod is attached, at the end of a crank, or…

A strong broth of meat, strained and made clear for invalids; also, a savory jelly. [Obs.] When I am exellent at caudles And cullises . . . you shall be welcome to me. Beau. & Fl.

ast like one that takes diet. Shak. Diet kitchen, a kitchen in which diet is prepared for invalids; a charitable establishment that provides proper food for the sick poor.

To invalidate the consecration of; as, to disanoint a king. [Obs.] Milton.

Rejection; a setting aside as trivial, invalid, or unworthy of consideration.

To make null; to nullifly; to render invalid or of no effect; as, to frustrate a conveyance or deed.

estlessness; chafing of spirit; fretfulness; passion; as, the impatience of a child or an invalid. I then, . . . Out of my grief and my impatience, Answered neglectingly. Shak. With huge impatience he inly swelt More for great sorrow that he could not pass, Than for the burning torment which he felt. Spenser.…