ostensibly

The god of cleanliness is never satisfied. In America, the ostensibly egalitarian nature of society meant that cleanliness was used to mark status. —Joanna Bourke, Harper's, April 2008

Budweiser and Miller, on the other hand, have eroded their credibility by launching brands ostensibly produced by microbreweries. They've been found out, with resulting customer cynicism. —James R. Rosenfield, Demographics, December 1997

The day after Clinton made his seemingly proactive statement, he met with congressional leaders of both parties, ostensibly to press the case for military intervention. —Michael Kelly, New Yorker, 19 Dec.1994

ostensibly a university student studying abroad, he was actually an espionage agent