high-strung

adj

high-strung

adj

1

Idiomatic, Informal Nervous; anxious; excited or excitable.

But it exasperated the higher strung nature of Colonel Feraud1908, Joseph Conrad, The Duel, A Military Tale, page 62:
"Why, you're shakin' all over!" "I suppose I wouldn't be a medium if I wasn't high strung."1925 July – 1926 May, A[rthur] Conan Doyle, “(please specify the chapter number)”, in The Land of Mist (eBook no. 0601351h.html), Australia: Project Gutenberg Australia, published April 2019:

2 more examples

I probably would have gone with a spaniel rather than a setter. Especially since they listed the Irish Setter - arguably the highest-strung of the bunch.2003 October 21, queenmother, “Recommended Dog Breeds”, in rec.pets.dogs.breeds (Usenet):
My mother, always described in our family as high-strung, was acting higher-strung than I ever remembered her.2010, Paula Butturini, Keeping the Feast, One Couple's Story of Love, Food, and Healing, page 69:

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