Wordiyo
RootsVocabularyCoursesGuidesMy WordsPricing
Wordiyo

Build your English vocabulary systematically through roots and etymology.

Explore

  • Roots
  • Vocabulary
  • My Words

Learn

  • Guides
  • Pricing

Company

  • About
  • Terms
  • Privacy

© 2026 Wordiyo.

  1. Home
  2. /unsuccessful

unsuccessful

UK/ʌnsək'sesfʊl/US/.ʌnsәk'sesful/
B2

Definitions

adj.

Not achieving a desired aim or result

不成功的,失败的

Root Breakdown

Root-derived
un-not, reversal
+
successfulunder, below
=unsuccessful

un- (not) + successful = not successful. Transparent negation.

Common Collocations

  • 1.unsuccessful attempt失败的尝试
  • 2.unsuccessful candidate落选的候选人
  • 3.largely unsuccessful大体失败的
  • 4.prove unsuccessful结果不成功

Example Sentences

  • 1.

    Their first attempt to climb the peak was unsuccessful.

  • 2.

    After several unsuccessful interviews, he changed tactics.

← Browse all roots