Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
too-generous is an adjective meaning "very generous". It carries one recorded sense.
very generous
“distributed gifts with a lavish hand”
“the critics were lavish in their praise”
“a munificent gift”
“his father gave him a half-dollar and his mother a quarter and he thought them munificent”
“prodigal praise”
“unsparing generosity”
“his unstinted devotion”
“called for unstinting aid to Britain”
Definitions, synonyms and semantic relations for too-generous come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.