Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
tardily is an adverb meaning "without speed (`slow' is sometimes used informally for `slowly')". It carries 2 recorded senses.
later than usual or than expected
“the train arrived late”
“we awoke late”
“the children came late to school”
“notice came so tardily that we almost missed the deadline”
“I belatedly wished her a happy birthday”
Definitions, synonyms and semantic relations for tardily come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.