informal
: a person's physical state or condition
—usually used in the phrase in fine fettle
He seems to be in fine fettle this morning. [=he seems to be feeling very well; he seems very fit and cheerful]
Cite this Entry
“Fettle.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/fettle. Accessed 16 Apr. 2026.
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