Syllable division and stress derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
petitionary is an adjective meaning "of the nature of or expressing a petition". It carries one recorded sense.
of the nature of or expressing a petition
“the petitionary procedure had a quality of indecisiveness”
Definitions, synonyms and semantic relations for petitionary come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. .