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malfunctioning

ADJECTIVE

faulty

Synonyms

STRONGEST

broken cracked damaged defective deficient erroneous false flawed imprecise inaccurate inadequate incomplete insufficient invalid leaky unreliable

WEAK

adulterated amiss awry bad below par blamable blemished botched debased distorted fallacious fallible frail impaired imperfect inexact injured lame lemon maimed malformed marred out of order rank sick tainted unfit unretentive unsound warped weak wrong

Antonyms

STRONGEST

OK accurate adequate ample complete correct enough faultless fixed flawless honest perfect reliable right sufficient true unbroken valid working

WEAK

sound strong

ADJECTIVE

jammed

Synonyms

STRONGEST

blocked clogged swollen wedged

STRONG

barred caught fast fastened fixed frozen lodged obstructed sandwiched trammeled warped

WEAK

immovable out of order stiff unworkable

Antonyms

STRONG

impermanent unfixed

WEAK

clear empty loose operating vacant

ADJECTIVE

on the fritz

Synonyms

WEAK

bonkers broken faulty haywire inoperable kerflooey not working on the blink on the bum out of commission out of kilter out of order out of whack

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Some have even highlighted that a briefly malfunctioning space toilet cost about $23 million.

From Salon • Apr. 7, 2026

To do so, Reddick had to overcome a malfunctioning battery and a large deficit in the final 50 laps.

From Los Angeles Times • Mar. 23, 2026

The party had weak local roots, "a malfunctioning party machine" and was mired in legal troubles, she told AFP.

From Barron's • Mar. 23, 2026

Although there have been some stories about cars malfunctioning and leaving passengers trapped inside.

From BBC • Jan. 28, 2026

As it turned out, the water-level indicator was malfunctioning.

From "Meltdown" by Deirdre Langeland