In an ostentatious manner; extravagantly or flamboyantly.(adverb)
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Use "ostentatiously" in a sentence
"During the House debate on the Ten's contempt citations, Rankin ostentatiously unfurled a CFA petition in support of the Ten and began to read, a performance intended to raise once more the specter of a Jewish-Communist conspiracy in Hollywood and to warn the recalcitrant CFA members that they could be tarred with the same Red brush as the Ten:"
"Yet Raphael, eschewing mystery, signed his name ostentatiously on his courtesan's arm band, left her undressed, and gave her face a knowing expression."
"Government was in office, with Lord Randolph Churchill as its leader in the House of Commons; and one of the first acts of the new leader was to separate himself ostentatiously from the Irish policy of Lord Spencer and from the policy of coercion in general."