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Use "unthanked" in a sentence
"You/will/be judged on the latter criteria by us, and by your poor, unthanked, unregarded, put-upon, left to rot by the hierarchy troops (who must be about * that* close to fragging some of you themselves)."
"They're the things that usually go unthanked, unnoticed."
"And most acts of heroism go unnoticed and unthanked."