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Synonyms

unenthusiastic

British  
/ ˌʌnɪnθjuːzɪˈæstɪk /

adjective

  1. lacking in enthusiasm

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Explanation

Whether it's a boring class, an unappealing chore, or a dull event, if you're not looking forward to it and show little interest or happiness toward it, then you're unenthusiastic. The word unenthusiastic describes a lack of excitement or interest. If someone’s unenthusiastic, they’re not really into what’s happening—like when you give a half-hearted cheer at a game because you don’t really care who wins. This word is often used when reactions feel flat or forced, as if the person would rather be doing something more fun. Being unenthusiastic means you’re not feeling the energy or passion, and it’s pretty clear you’re not enjoying whatever’s going on.

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The high stakes and the wall-to-wall television advertisements notwithstanding, the race has never really caught fire, and the public has seemed decidely unenthusiastic -- even if the vote could have national implications.

From Barron's • Jun. 2, 2026

Committed soldiers have been fighting without rest for years, and unenthusiastic new draftees are increasingly going AWOL.

From The Wall Street Journal • Jan. 29, 2026

Chris, who now runs UK indie studio Sidequest Ninja, says that in his experience smaller developers are generally unenthusiastic about using generative AI.

From BBC • Jul. 15, 2024

Even if initially unenthusiastic, your kids will eventually discover the joy of digging in the soil and caring for their tomato plants.

From Seattle Times • Jun. 3, 2024

Someone watching might have thought he was being unenthusiastic, but I knew what he was feeling.

From "Never Let Me Go" by Kazuo Ishiguro

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