underdressed

British  

/ ˌʌndəˈdrɛst /

adjective

1. wearing clothes that are not elaborate or formal enough for a particular occasion

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Example Sentences

When her rival, Poot’s Thea, arrives underdressed, Hedda forces her into a hideous frock with fussy bows and an ungainly skirt.

From Los Angeles Times

A Times photographer and I, slightly underdressed, scuttled past the valet and into the backyard.

From Los Angeles Times

As I waited for my cappuccino in a line of VIP shoppers and newsletter subscribers sporting an abundance of Chanel handbags, I felt underdressed in jeans, sans blowout.

From Los Angeles Times

Then one evening, in front of Sarah and Mark and a sad bowl of underdressed salad, she tells him that she heard what he said.

From New York Times

So perhaps I jumped to the conclusion that Roy and Keeley were back together after the former showed up conspicuously underdressed in the latter’s apartment following his “stuck” revelation and subsequent letter.

From New York Times