as fit as a fiddle
Meaning
In very good health and physical condition.
Origin
A simile from the late 19th century. “Fit” originally meant ‘suitable/well-adapted’; the fiddle (violin) suggests something well-tuned and in good working order, leading to the sense ‘in excellent condition/health.’
Notes
A friendly, upbeat way to say someone feels very healthy. Slightly old-fashioned but still widely understood.
Examples
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After six months of training for the marathon, she’s as fit as a fiddle.
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Grandpa may be 80, but he’s still as fit as a fiddle and goes hiking every weekend.
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I was worried the illness would slow him down, but he’s as fit as a fiddle now.
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Once I started cycling to work every day, I felt as fit as a fiddle.
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The doctor checked her vitals and said she was as fit as a fiddle.
Grammar & Usage Notes
Usually used with linking verbs (be/feel/look): “I’m as fit as a fiddle,” “She feels as fit as a fiddle.” Can take past tense (“was”). Fixed pattern “as + adjective + as + noun.”
Synonyms
- in great shape
- as healthy as a horse
- in the pink
- fit as a butcher’s dog
Antonyms
- out of shape
- under the weather
- in poor health