inefficient

noun 0.878

efficiency

noun 0.759

inefficacy

noun 0.756

ineffectiveness

noun 0.700

incompetence

noun 0.645

productive efficiency

noun 0.630

insufficiency

noun 0.630

ineptitude

noun 0.626

ineptness

noun 0.614

wastefulness

noun 0.613

efficient cause

noun 0.607

unprofitability

noun 0.593

incompetency

noun 0.590

static efficiency

noun 0.588

inutility

noun 0.584

inaccuracy

noun 0.584

inexpediency

noun 0.583

laziness

noun 0.583

unproductiveness

noun 0.579

wastage

noun 0.577

effeteness

noun 0.574

inability

noun 0.574

inadequacy

noun 0.572

infeasibility

noun 0.569

uselessness

noun 0.565

underperformance

noun 0.565

mismanagement

noun 0.563

dysfunctionality

noun 0.560

nonfunctionality

noun 0.560

infertility

noun 0.558

inconvenience

noun 0.558

idleness

noun 0.557

unfitness

noun 0.551

inelasticity

noun 0.550

inconsistency

noun 0.549

counterproductivity

noun 0.547

dysfunction

noun 0.545

inelegance

noun 0.545

underachievement

noun 0.545

incompetent

noun 0.544

inequity

noun 0.544

unsustainability

noun 0.543

futility

noun 0.543

impracticality

noun 0.543

inequality

noun 0.541

inertia

noun 0.541

faultiness

noun 0.541

impotency

noun 0.539

indolence

noun 0.537

disutility

noun 0.534

deficiency

noun 0.534

inequation

noun 0.533

impotence

noun 0.533

imprecision

noun 0.532

inactivity

noun 0.531

inadequate

noun 0.531

insolvency

noun 0.531

underproduction

noun 0.531

incoordination

noun 0.529

inexactness

noun 0.529

unfeasibility

noun 0.526

underemployment

noun 0.525

injustice

noun 0.525

inflexibility

noun 0.523

unpunctuality

noun 0.523

efficacy

noun 0.522

unreliability

noun 0.522

clumsiness

noun 0.520

underinvestment

noun 0.520

incapability

noun 0.520

imperfection

noun 0.520

weakness

noun 0.518

maladministration

noun 0.518

inferiority

noun 0.517

infelicity

noun 0.516

productivity

noun 0.516

irrationality

noun 0.516

inequivalence

noun 0.516

insensitivity

noun 0.516

infirmity

noun 0.515

disincentive

noun 0.515

deficit

noun 0.513

negligence

noun 0.513

incoherence

noun 0.513

impuissance

noun 0.512

inaccessibility

noun 0.512

waste

noun 0.511

unfruitfulness

noun 0.511

fruitlessness

noun 0.511

shortcoming

noun 0.511

sluggishness

noun 0.510

inexperience

noun 0.510

incorrectness

noun 0.510

fecklessness

noun 0.510

impatience

noun 0.510

inexpensiveness

noun 0.509

incompatibility

noun 0.508

nonperformance

noun 0.508

malfunctioning

noun 0.508

inaction

noun 0.508