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ineffectual

adjective
 
 
/ˌɪn.ɪˈfek.tju.əl/ formal

Definition

not skilled at achieving, or not able to produce, good results: an ineffectual leader The teachers were ineffectual at maintaining discipline.Useless and futile ineffectually
 
 
/-i/ adverb
Useless and futile
(Definition of ineffectual adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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