What is another word for "certain"?

Roget's Thesaurus (1911) lists these synonyms for "certain": according, accordingly, adventitious, alone, alter, among, are, attitude, attribution, being, case, causation, centesimal, circumstance, circumstantial, conditional, conditionally, conjunctive, context, contingency, contingent, crisis, critical, decimal, decimate, decimation, deficit, dependence, division, duodecimal, emergence, emergency, environment, event, exigency, extrinsic, few, fifth, five, footing.