efficiency

noun 0.759

effective

noun 0.704

productive efficiency

noun 0.703

static efficiency

noun 0.695

effective energy

noun 0.679

efficacity

noun 0.668

effectivity

noun 0.646

effectiveness

noun 0.623

inefficient

noun 0.619

bioefficacy

noun 0.613

inefficiency

noun 0.607

efficacy

noun 0.605

effectuality

noun 0.604

ill effect

noun 0.595

efficaciousness

noun 0.588

dynamic efficiency

noun 0.587

effect

noun 0.572

desired effect

noun 0.561

practical effect

noun 0.537

expedient

noun 0.535

even function

noun 0.535

economizer

noun 0.535

productiveness

noun 0.518

effort

noun 0.518

economization

noun 0.517

optimal

noun 0.516

optimum

noun 0.514

optimization

noun 0.511

noneffective

noun 0.509

optimality

noun 0.508

effortlessness

noun 0.508

effeteness

noun 0.508

expeditiousness

noun 0.508

optime

noun 0.504