Definition of unquailing in English:

unquailing

Pronunciation /(ˌ)ʌnˈkweɪlɪŋ/ /(ˌ)ʌŋˈkweɪlɪŋ/

adjective

  • Not quailing; undaunted.

Origin

Early 19th century; earliest use found in The Westminster Review. From un- + quailing.