Feeling or exhibiting nervous tension
Rhyn kept his distance, knowing just how jumpy an assassin could be.
She's quite stressed most of the time, very jumpy.
Traditional dance music can't really be characterised or defined in words, as it is different depending on where in the world you go, but it generally has either a jumpy feel or a gently swaying beat.
As though people aren't already jumpy enough.
Being surrounded by vamps all day makes you jumpy.