from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Having no specific pattern, purpose, or objective: random movements. See Synonyms at chance.
- adj. Mathematics & Statistics Of or relating to a type of circumstance or event that is described by a probability distribution.
- adj. Of or relating to an event in which all outcomes are equally likely, as in the testing of a blood sample for the presence of a substance.
- idiom at random Without a governing design, method, or purpose; unsystematically: chose a card at random from the deck.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Having unpredictable outcomes and, in the ideal case, all outcomes equally probable; resulting from such selection; lacking statistical correlation.
- adj. Of or relating to probability distribution.
- adj. Pseudorandom in contrast to truly random; mimicking the result of random selection.
- adj. Representative and undistinguished; typical and average; selected for no particular reason.
- adj. Apropos of nothing; lacking context; unexpected; having apparent lack of plan, cause, or reason.
- adj. Characterized by or often saying random things; habitually using non sequiturs.
from the GNU version of the Collaborative International Dictionary of English
- n. Force; violence.
- n. A roving motion; course without definite direction; want of direction, rule, or method; hazard; chance; -- commonly used in the phrase at random, that is, without a settled point of direction; at hazard.
- n. Distance to which a missile is cast; range; reach.
- n. The direction of a rake-vein.
- adj. Going at random or by chance; done or made at hazard, or without settled direction, aim, or purpose; hazarded without previous calculation; left to chance; haphazard.
- adj. of, pertaining to, or resulting from a process of selection from a starting set of items, in which the probability of selecting any one object in the starting set is equal to the probability of selecting any other.
- adj. of unequal size or shape; made from components of unequal size or shape.
from The Century Dictionary and Cyclopedia
- n. A rushing, as of a torrent; an impetuous course; impetuosity; violence; force: especially with great, as in the phrase a great random, with great speed or force.
- n. A rush; spurt; gush.
- n. A continuous flow of words; a harangue.
- n. An indeterminate course or proceeding; hence, lack of direction, rule, or method; haphazard; chance: used only in the phrase at random—that is, in a haphazard, aimless, and purely fortuitous manner.
- n. The distance traversed by a missile; range; reach.
- Proceeding, taken, done, or existing at random; aimless; fortuitous; haphazard; casual.
- n. Something done or produced without definite method, or with irregular or haphazard effect.
- n. In dyeing, clouded yarn. See random yarn, under I.
- n. In mining, the direction of a rake-vein.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. lacking any definite plan or order or purpose; governed by or depending on chance
From at random, by chance, at great speed, from Middle English randon, speed, violence, from Old French, from randir, to run, of Germanic origin.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Middle English raundon, from Old French randon, from randir ("to gallop") ( > French randonnée ("long walk, hike")), from Frankish *rant, *rand ("a running"), from Proto-Germanic *randiō (“a running”), from Proto-Germanic *rinnanan (“to run”), from Proto-Indo-European *ren- (“to rise; to sink”). See run. (Wiktionary)