The phrase "nervous disposition" means that someone is prone to feeling anxious, uneasy, or apprehensive.
Sentences with «nervous disposition»
The eclectic décor is sure to appeal to adventurous spirits, although the warm, welcoming staff will put those of a more nervous disposition immediately at ease. (eharmony.co.uk)
If the board had a more nervous disposition they may not have taken on this challenge. (200-percent.com)
Before showing the slide Curtice warned «anybody in the room who is a Labour supporter and of nervous disposition» to brace themselves. (theguardian.com)