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Not known; unknown. [Colloq.]

That which is uncertain; something unknown. Our shepherd's case is every man's case that quits a moral certainty for an uncertainty. L'Estrange.

Unknown; strange, or foreign; unusual, or surprising; distant in manner; reserved. [Scot.]

Unknown. [Obs.] "This uncouth errand." Milton. To leave the good that I had in hand, In hope of better that was uncouth. Spenser.

Unknown; strange. [Obs.] -- n.

Not dated; having no date; of unknown age; as, an undated letter.

ard or unadored. Milton. Unheard of. (a) Not heard of; of which there are no tidings. (b) Unknown to fame; obscure. Glanvill.

A two-horned animal of some unknown kind, so called in the Authorized Version of the Scriptures. Canst thou bind the unicorn with his band in the furrow Job xxxix. 10.

Unknown; strange. [Obs. or Scot.] W. Browne.

Not known; unknown. [Obs.] Chaucer. Spenser.

er. Vacant succession (Law), one that is claimed by no person, or where all the heirs are unknown, or where all the known heirs to it have renounced it. Burrill.

r of turning; revolution; rotation. [R.] Locke. I hardly believe he hath from elder times unknown the verticity of the loadstone. Sir T. Browne.

The doctrine that all the functions of a living organism are due to an unknown vital principle distinct from all chemical and physical forces.

Unknowing; also, unknown; unmeaning. [Obs.] Spenser.

; proceeding by inquiry. Zetetic method (Math.), the method used for finding the value of unknown quantities by direct search, in investigation, or in the solution of problems. [R.] Hutton.

A branch of algebra which relates to the direct search for unknown quantities. [R.]