Unimprestige

The high level of respect with which one's indifference is regarded by others.

Rob earned much unimprestige from his friends as he nonchalantly walked past a car crash.

by ZephWilliams August 21, 2011

Unimpressive

Not awe inspiring.
This definition.

When I couldn't find unimpressive in the urban dictionary my first thought was "that's an unimpressive dictionary."

by Alexander Smart July 19, 2018

Decidedly unimpressive

Ben Pierce’s penis

“I already told you my dick is decidedly unimpressive.”

“It’s like a volcano in the Adirondacks.”

by Whimsyravioli July 24, 2018