functionless

Without any purpose

Functionless describes something that serves no purpose or has no useful role.

A functionless appendage or organ has lost whatever purpose it once had.

The word often appears in discussions of evolution, design, or bureaucracy: The committee had become functionless after the merger.

Unlike useless, functionless emphasizes absence of function rather than failure to perform one.

obsolete

outdated

No longer in use

antiquatedOld and outdated
archaicBelonging to earlier times
outmodedNo longer in fashion

deprecated · superseded · discarded · mothballed · defunct · decommissioned · retired · disused · abandoned · bygone

redundant

superfluous

Exceeding what suffices

unnecessaryNot essential or required
extraneousNot pertinent or essential
surplusAmount exceeding requirement

excess · gratuitous · dispensable · unneeded · expendable · nonessential · unessential · spare · extra · duplicative

useless

purposeless

Lacking aim or intention

pointlessLacking any purpose
futileIncapable of producing results
ineffectiveLacking power to achieve

ineffectual · worthless · unproductive · inoperative · unavailing · fruitless · impotent · valueless · unhelpful · unserviceable

dormant

inactive

Not currently functioning

idleWithout activity or purpose
inertInactive, physically or chemically
latentPresent but inactive

quiescent · unused · untapped · fallow · suspended · hibernating · standby · shelved · mothballed · deactivated

Opposites

utility/purpose

functionlessfunctional

Able to operate correctly

useful · purposeful · utilitarian · practical · serviceable

operational status

functionlessoperational

Ready to function

working · functioning · active · operative · running

Family

function, functional, functioning, malfunction, functions, functioned, dysfunction, malfunctioning, functionary

Familiarity: Top 500,000
Profile: Used worldwide · Timeless · Abstract · Everyday, not technical · Rated G