fail vi1: to be or become inadequate or unsuccessful esp. in fulfilling certain formal requirementseven though one or more terms are left open a contract for sale does not fail for indefiniteness — Uniform Commercial Code2: to become bankrupt or insolventvt: to leave undone or neglect to dofail to appear in courtfail to read a contract
Merriam-Webster’s Dictionary of Law. Merriam-Webster. 1996.
be defeated, be demoted, be unsuccessful, become bankrupt, become insolvent, botch, bungle, cadere, collapse, come short, come to naught, come to nothing, concidere, crash, decline, deficere, deteriorate, disappoint, dishonor, err, fall short, flunk, fold, go out of business, go under, lose, miscarry, miss the mark, not succeed, prove inadequate, prove unsatisfactory, prove useless, succumb
abandon, avoid, break one's promise, break one's word, desert, evade, forsake, ignore, leave, let one down, mismanage, miss, miss an opportunity, omit, prove unreliable, shirk
associated concepts: fail to act, fail to appear, fail to comply
decay, default, disappoint, ebb, languish, lapse (fall into error), lose (undergo defeat), mismanage, neglect, perish, succumb
Burton's Legal Thesaurus. William C. Burton. 2006
v.To be unsuccessful at something; to be deficient; to be unable to meet obligations; to lapse (a legacy).n.failure
The Essential Law Dictionary. — Sphinx Publishing, An imprint of Sourcebooks, Inc. Amy Hackney Blackwell. 2008.
v. To break; not to succeed in reaching a standard or goal; to perform ineptly or faultily; to become bankrupt.
Webster's New World Law Dictionary. Susan Ellis Wild. 2000.