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unsuccessful Syllabification: un·suc·cess·ful
Pronunciation: /ˌənsəkˈsesfəl/

Definition of unsuccessful in English:


Not successful: an unsuccessful transition period
More example sentences
  • To discriminate between successful and unsuccessful interventions we need evidence.
  • That is not restricted to the situation where the claimant is successful or unsuccessful.
  • He has already made two unsuccessful attempts at raising finance to fund an expansion programme.
vain, futile, useless, pointless, worthless, luckless
unprofitable, loss-making
failed, losing, beaten;
unlucky, out of luck
informal losingest


Pronunciation: /ˌənsəkˈsesfəlē/
Example sentences
  • The Perth MP and MSP claimed the paper tried hard but unsuccessfully to get her to criticise the police.
  • After trying unsuccessfully to free his finger, his parents, Laura and Tony, called the fire brigade.
  • Higher education institutions in Leeds and private companies had unsuccessfully been approached.
Example sentences
  • ‘I'm loose,’ he said, trying with great unsuccessfulness to float face down.
  • These boys represent the evidence which proves the unsuccessfulness of this treatment.
  • Major factors that influence student unsuccessfulness as determined by the results of this study are presented below.
Definition of unsuccessful in:
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