ungrudging

她对妹妹的成功表示由衷的赞赏，没有丝毫嫉妒。

She gave her sister ___ungrudging admiration for her success.

尽管工作很辛苦，他还是毫无怨言地帮助了新同事。

Despite the heavy workload, he gave ___ungrudging help to the new colleague.