Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
fuddy-duddy is a noun meaning "a conservative who is old-fashioned or dull in attitude or appearance". It carries one recorded sense.
a conservative who is old-fashioned or dull in attitude or appearance
“you may accuse me of being and old fuddy-duddy trying to stop young people having fun”
colloquialism
Definitions, synonyms and semantic relations for fuddy-duddy come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. .