Definition of unquarrelsome in English:
unquarrelsome
Pronunciation /(ˌ)ʌnˈkwɒrəls(ə)m/ /(ˌ)ʌŋˈkwɒrəls(ə)m/ /(ˌ)ʌnˈkwɒr(ə)ls(ə)m/
adjective
Not quarrelsome; disinclined to quarrel.
Origin
Mid 19th century; earliest use found in John Wilson. From un- + quarrelsome.