The Vocalibrate dictionary

ostensibly

US/ɑːˈstɛnsəbli/GB/ɒˈstensəbli/adverb

apparently or supposedly, though perhaps not really

He visited, ostensibly to return a book, but really to see her sister.

Near in meaning
supposedlyapparentlyseeminglypurportedlyofficiallynominally
In the family
ostensible

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