ineffective adj.
VERBS be, prove, seem These policies have proved ineffective. | become | make sth, render sth The contract was rendered ineffective by this careless wording.
ADV. highly, singularly, very | completely, entirely, totally, wholly | largely | pretty, rather, relatively, somewhat | apparently | politically
PREP. against These weapons are totally ineffective against tanks. | in chemicals that are very ineffective in killing weeds
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