supposedly

/səˈpoʊzɪdli/
adverb
  1. According to what is generally assumed or believed, often without proof or certainty.
    • She is supposedly an expert in ancient history, but I have my doubts.
    • Supposedly, the treasure is buried somewhere on the island.
    • The meeting was supposedly scheduled for 10 a.m., but no one showed up.
Antonyms
What does "supposedly" mean? | whatsthatwordmean | whatsthatwordmean