meliorist

noun 0.864

amelioration

noun 0.637

ameliorative

noun 0.632

betterment

noun 0.612

perfectibility

noun 0.612

utopianism

noun 0.581

possibilism

noun 0.568

reformism

noun 0.567

optimism

noun 0.564

idealism

noun 0.562

improvability

noun 0.559

eudaemonism

noun 0.554

millennialism

noun 0.548

millenarianism

noun 0.547

moralism

noun 0.543

fallibilism

noun 0.535

moral realism

noun 0.533

betterness

noun 0.528

bettering

noun 0.522

voluntarism

noun 0.520

optimate

noun 0.520

optimist

noun 0.516

rationalism

noun 0.513

eternalism

noun 0.513

improvement

noun 0.510

evolutionism

noun 0.508

alternativism

noun 0.507

pessimism

noun 0.505

triumphalism

noun 0.505

positivism

noun 0.505

humanism

noun 0.503

millenarian

noun 0.500

horizontalism

noun 0.500