acrimonious, antagonistic, antipathetic, antipathetical, argumentative, at odds with, attacking, averse, belligerent, bickering, cantankerous, clashing, conflicting, confutative, contentious, contesting, contradictory, contrary, contrasted, contrasting, contravening, converse, counteractive, countering, demurring, denying, disaccordant, disavowing, discordant, disobliging, disputing, dissentient, dissident, factious, fractious, gainsaying, hostile, ill-willed, impugning, incompatible, inimical, inverse, negans, negatory, opposed, opposing, opposite, quarrelsome, rancorous, rebuffing, rebutting, refuting, rejecting, repudiating, repugnant, resistive, reverse, spurning, traversing, unaffirmative, unconverted, unconvinced
associated concepts: negative covenant, negative easement, negative evidence, negative testimony
challenge, contradict, contrary, disadvantageous, disapprove (reject), disavow, disown (deny the validity), dispute (contest), dissent (withhold assent), negate, opposite, perverse, prohibit, rebut, recusant, refuse, veto, vitiate
Burton's Legal Thesaurus. William C. Burton. 2006
adj.(1) Characterized by absence rather than presence.(2) Expressing refusal, denial, or disagreement.
The Essential Law Dictionary. — Sphinx Publishing, An imprint of Sourcebooks, Inc. Amy Hackney Blackwell. 2008.