英和和英

発音

• IPA: /ˈjuːsfəlnəs/
• ハイフネーション: use‧ful‧ness

名詞

usefulness (countable and uncountable, plural usefulnesses)

1. The quality or degree of being useful.

   The usefulness of his latest reorganisation has been disputed.

   • 1838 (date written), L[etitia] E[lizabeth] L[andon], chapter VII, in Lady Anne Granard; or, Keeping up Appearances. […], volume I, London: Henry Colburn, […], published 1842, →OCLC, page 85:

     Always kept in the background, and undervalued by Lady Anne, who disliked the spirit of active usefulness which characterized her youngest daughter, this was the first time that Isabella had been loved for herself;...

   • 2019 May 2, Nina Avramova, “When you should use self-help programs and when to skip them”, in CNN‎, archived from the original on 13 June 2025:

     Redding’s study asked four psychologists with expertise in anxiety and depressive disorders to rate each self-help book on five criteria: […] and the general usefulness of the book as a self-administered method for changing behavior or psychological change.

   • 2024 May 14, Clay Drinko, “Lower Your Expectations”, in Psychology Today‎, archived from the original on 18 December 2025:

     It turns out, there’s research that backs up the usefulness of lowering our expectations. Participants in one study had to make decisions that either led to financial gains or losses, all while inside a magnetic resonance imaging (MRI) machine. Researchers then duplicated this experiment as an app to crowdsource more data.

同意語

• utility

参考

• beauty