ineffective

Study(2)

UK /ˌɪn.ɪˈfɛk.tɪv/ US /ˌɪn.əˈfek.tɪv/

adj 2

Collocations

(adj.)

VERBS

be, prove, seem

The new safety rules seemed ineffective because employees continued ignoring them.

become

make sth, render sth

The new safety rules made the old procedures ineffective almost overnight.

ADV

PREP

against

The old antibiotics proved ineffective against the new strain of bacteria.

The old medication proved ineffective in treating her chronic back pain.

Definitions

adj

Not having the desired effect; ineffectual; otiose.

Lacking in ability; incompetent or inadequate.

Fire ants circumvented the problem of an ineffective sting by having an unusual and highly effective venom that when daubed or sprayed on other ants penetrates their waxy protective integumental barrier and kills or disables them.

Their use was “impermissible not because it is unwise or ineffective, but because [federal law]^([sic]) does not allow it”, the decision explained.

Thesaurus

Synonyms

adjective — lacking the ability or skill to perform effectively

inefficient

adjective — not producing an intended effect

uneffective
ineffectual

adjective — lacking in power or forcefulness

Antonyms

effective
effectual
efficacious

Idioms & Phrases

Example Bank

Wiktionary

Their use was “impermissible not because it is unwise or ineffective, but because [federal law]^([sic]) does not allow it”, the decision explained.

Wiktionary

The 5% topical solution was ineffective at reducing eczema outbreaks.

Tatoeba · #840108

A plethora of ineffective education programs made the president unpopular amongst fiscal conservatives.

Tatoeba · #840109

Luckily, the treatment was only ineffective instead of harmful.

Tatoeba · #840112

Five self-help books later, Sergey still had a terribly ineffective approach to management.

Tatoeba · #840113

Usage Notes

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