0 wearing clothes that are not attractive enough or formal enough for a particular occasion:
Everyone else was in formal suits and I felt completely underdressed.
I have felt underdressed many times in my life, but never, until today, when walking into a cell phone store.
The men were buff and tan and similarly underdressed.
Being underdressed will leave you vulnerable to a painful strain.
It's the crowd outside, the people too young or too underdressed to get in, who alarm the neighbors.
I can't help feeling a little underdressed.
Some people go out so underdressed!
The man himself -- underdressed, overinformed, speaking with the halting care of someone used to leaning on the backspace key -- stood out as a flamboyant nebbish even in a nebbish-packed profession.
Remember this: it is always better to be underdressed than to be overdressed.