Wiktionary
unsentimentally
adv. In an unsentimental way.
WordNet
unsentimentally
adv. in an unsentimental manner; "unsentimentally, she threw out her dead son's toys" [ant: sentimentally]
Usage examples of "unsentimentally".
Her resentment caused her to look unsentimentally at the ramifications of her life, and what she saw evoked even deeper indignation.
But I do not agree (if you admit that fairy-story element) that my trolls show any sign of 'good', strictly and unsentimentally viewed.