unfastening Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition verb. the act of opening or loosening something. Example Sentence She was unfastening her seatbelt when the car suddenly stopped. More Example Sentences The child was unfastening the backpack strap. Synonyms opening; loosening; releasing Antonyms fastening; securing; closing Hear It! Say It! Write It! unfastening Switch to cursive Start Share with your friends:
