Need. Exigency, emergency, extremity, strait, distress, indigence, penury.
Ant. Competence, affluence, choice, wealth, luxury, profuseness; superfluity, uselessness, dispensableness; casualty, accident; contingency, freedom.
Needful. Requisite, needy, necessitous, distressful, essential, indispensable.
Ant. Contingent, casual, unnecessary, unessential, discretional, optional, needless.
Needless. Unnecessary, useless, superfluous, groundless, gratuitous.
Ant. Needful, useful, helpful, obligatory.
Nefarious. Wicked, abominable, iniquitous, execrable, atrocious, impious.
Ant. Noble, honorable, admirable, laudable; benevolent, generous, humane.
Negation. Denial, disavowal, disclaimer, contradiction.
Ant. Assertion, declaration, deposition, avowal, affirmation, allegation, protestation, claim.