6 synonym groups for Necessary

necessary-items, essential-items, needed-items, mandatory-items, requisite-items, compulsory-items, obligatory-items, vital-items, indispensable-items, crucial-items, fundamental-items, important-items, key-items, must-have-items, needed-objects, necessary-objects, essential-objects, required-objects, requisite-objects, mandatory-objects, compulsory-objects, obligatory-objects, vital-objects, indispensable-objects, crucial-objects, fundamental-objects, important-objects, key-objects, must-have-objects [x]

unnecessary, redundant, superfluous, surplus, dispensable, nonessential, extraneous, expendable, gratuitous, inessential, unwarranted, uncalled-for, needless, irrelevant, unimportant, useless, unwanted, excessive, spare, optional, unrequired, nonmandatory, noncompulsory, avoidable, trivial, minor, insignificant, peripheral, unmerited, unjustified, pointless, purposeless, futile, unavailing, worthless, valueless, inconsequential, immaterial, unessential, nonobligatory, nonimperative, noncrucial, nonvital, noncritical, nonurgent [x]

unnecessary, unimportant, trivial, insignificant, minor, peripheral, dispensable, extraneous, superfluous, redundant, noncritical, nonvital, optional, inessential, unneeded, needless, irrelevant, inconsequential, immaterial, secondary, marginal, auxiliary, expendable, nonmandatory, nonobligatory, noncompulsory, nonrequired, noncrucial, nonindispensable, nonimperative, nonurgent, nonparamount, nonpivotal, noncentral, nonfundamental, nonintegral, nonkey, nonprimary, nonprincipal [x]

crucial, vital, fundamental, indispensable, necessary, key, pivotal, important, critical, primary, central, core, basic, principal, requisite, significant, imperative, integral, mandatory, needed, required, urgent, paramount, obligatory, salient, consequential, substantial, pressing [x]

justified, authorized, sanctioned, validated, approved, legitimate, permissible, defensible, supported, substantiated, merited, rightful, appropriate, suitable, fitting, proper, reasonable, fair, acceptable, allowable, licit, lawful, endorsed, certified, confirmed, ratified, assured, guaranteed, ensured, secured, vouched for, backed, warranted [x]

crucial, vital, fundamental, necessary, indispensable, key, important, pivotal, critical, primary, central, basic, core, principal, requisite, significant, imperative, integral, mandatory, needed, required, urgent, consequential, substantial, paramount, obligatory, compulsory, salient, cardinal, preeminent, pressing [x]