unmeritorious, frivolous, vexatious litigation, mala fide, contumacious, vindictive, justiciable, unparliamentary, ultra vires, unneighbourly, infructuous, meritless, interlocutory, nugatory, unhelpful, litigious, interlocutory injunction, contemptuous, dilatory, indecorous, pettifogging, spiteful, dishonest, unprincipled, calumnious, otiose, retrogressive, scurrilous, specious, tautological, colourable, spurious, illiberal, meretricious, compellable, unnecessary, baseless, defamatory, unwarranted, highhanded, unjustifiable, nonsensical, unreasoned, ad hominem, unreasonable, arrant, discreditable, aggrieved, unserious, unthoughtful, fallacious, unsubstantial, unsupportable, obiter dicta, unbecoming, uncharitable, inimical, contemptible, iniquitous, undemocratic, impertinent, fatuous, controverted, perjurious, unproductive, intimidatory, factitious, cognisable, demagogical, locus standi, discourteous, quo warranto, unsystematic, compoundable, obiter dictum, treasonable, invidious, uncredible, deceitful, pernickety, legalistic, uncalled, obiter, tendentious, ejectment, irresponsive, unwarrantable, meanspirited, ludicrous, disingenuous, obstructive, ex parte, egoistical, unsustained, puerile, libelous, thoughtless, irritating, prolix, unjustice, mitigatory, absurd, harassing, vexing, burdensome, annoying, irksome, perplexing, contentious, untoward, embarrassing, impolitic, trivial, troublesome, antitrust, baffling, complicated, exigent, oppressive, unfair, aggravating

vexatious litigation

annoying, bothersome, disagreeable, galling, irritating, nettlesome, pesky, pestering, pestiferous, plaguey, plaguy, teasing, vexing