describes something that is not planned or chosen for a particular reason, is not based on reason or evidence, or is done without concern for what is fair or right.
Based on random choice or personal whim, rather than any reason or system
(of power or a ruling body) Unrestrained and autocratic in the use of authority
(of a constant or other quantity) Of unspecified value
means determined, planned, or chosen seemingly at random or by chance.
based on random choice or personal whim, rather than any reason or system [adj]
arising from accident rather than from rule [adj ARBITRARILY]