unhumorous
un·hu·mo·rous
adjective
1.
lacking humor
- “it was a humorless wink; a wink of warning” Truman Capote
Origin
From un- + humorous.
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.