In a manner that shows off or exhibits something in a showy, attention-seeking way.
From 'flaunt' + '-ing' (present participle) + '-ly' (adverb suffix). A variant adverbial form emphasizing the continuous or characteristic nature of the displaying behavior.
This word uses the '-ingly' pattern which creates adverbs that describe actions done in a particular characteristic manner—'laughingly,' 'seemingly,' 'knowingly'—and it's one of the most elegant ways English expresses attitude!
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