- Resembling or characteristic of the character Dr. Watson from the Sherlock Holmes stories.
- 1922, A. A. Milne, chapter XI, in The Red House Mystery:
- "You don't really want it explained," he said, smacking him on the knee; "you're just being Watsonish. It's very nice of you, of course, and I appreciate it."
- 1991, Kathryn Lasky, Double Trouble Squared, Harcourt Brace Jovanovich (1991), →ISBN, page 159:
- I would have settled for a Watsonish role. I don't have to be the main character.
- 2012, Philip Tallon, "Watsons, Adlers, Lestrades, and Moriaties: On the Nature of Friends and Enemies", in The Philosophy of Sherlock Holmes (eds. Philip Tallon & David Baggett), University Press of Kentucky (2012), →ISBN, page 66:
- This element is also picked up by Thomas Aquinas (whose philosophy sometimes has a Watsonish quality in relation to Aristotle, whom he calls simply “The Philosopher”).