From Longman Dictionary of Contemporary Englishuncomplainingun‧com‧plain‧ing /ˌʌnkəmˈpleɪnɪŋ◂/ adjective COMPLAINwilling to accept a difficult or unpleasant situation without complaining —uncomplainingly adverb
Examples from the Corpus
uncomplaining• She thought him extremely brave to carry on as though he was normal and to be so uncomplaining.• The tortuously narrow Lolo Trail, blocked by crags, trees and undergrowth, was quickly traversed by Joseph's uncomplaining cavalcade.• From the other end of the animal a soft uncomplaining grunt reminded me that I wasn't the only one involved.• However, the uncomplaining hero Bobby is without a permanent home.• an obedient, uncomplaining servant 