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If your button-down outfit is in need of a little spice, a quick trick is to unfasten the top and slip out a single shoulder.—Sri Rain Stewart, InStyle, 13 Jan. 2026 Skinny Pedro unfastened his seat belt and turned his seat around to face me.—Literary Hub, 12 Jan. 2026 Kelce unfastened the clasp on another necklace and then a third, before Chris Jones, his teammate for a decade, walked over and approached him.—Kansas City Star, 5 Jan. 2026 Adama unfastened a padlock and loosened the chain securing the doors.—Ken Harbaugh, The Atlantic, 15 Sep. 2025 See All Example Sentences for unfasten