His personal presence is unimpressive and his speech contemptible.
When you 're weak and unimpressive, they belittle you.
This criminal with the sack on his head seemed? ...? unimpressive.
Hiro held up a small, unimpressive twelve-inch robot.
Which is not unimpressive, even among monoliths - Well, no
For some say, " His letters are weighty and forceful, but in person he is unimpressive and his speaking amounts to nothing" .