Definition of ineffectually adverb from the Oxford Advanced Learner's Dictionary

 

ineffectually

 adverb
adverb
BrE BrE//ˌɪnɪˈfektʃuəli//
 
; NAmE NAmE//ˌɪnɪˈfektʃuəli//
 
(formal)
 
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without achieving much or the intended result; in a weak way