grudg·ing 
/ˈgrʌʤɪŋ/ adjective
/ˈgrʌʤɪŋ/ adjective [more grudging; most grudging] : said, done, or given in an unwilling or doubtful way
▪ Her theories have begun to win grudging acceptance in the scientific community. ▪ He has earned the grudging admiration/respect of his rivals.
▪ Her theories have begun to win grudging acceptance in the scientific community. ▪ He has earned the grudging admiration/respect of his rivals.
— grudg·ing·ly adverb
▪ Her theories have been grudgingly accepted. ▪ They grudgingly gave him permission.
▪ Her theories have been grudgingly accepted. ▪ They grudgingly gave him permission.
