High-strung and Pumped up

High-strung adjective - Easily excited by nature.

Pumped up and high-strung are semantically related. In some cases you can use "Pumped up" instead an adjective phrase "High-strung".

Pumped up adjective - Tense with excitement and enthusiasm as from a rush of adrenaline.

High-strung and pumped up are semantically related. Sometimes you can use "High-strung" instead an adjective "Pumped up".