unfastened

"Before the car started, the driver reminded everyone to buckle their seatbelt for safety. "

"The zookeeper unloosed the tiger from its transport crate into the new habitat. "

"I tripped because my shoelace was untied. "

"I think this piece connects to that piece over there."

"The teacher explained the new math concept quickly. "

"Be careful not to trip on the tree roots."

"The children were running to catch the school bus. "

"Can you fasten these boards together with some nails?"

"I stopped at the traffic lights."

"to detach the tag from a newly purchased garment"

"The student's agency in choosing her project topic was evident in her well-researched proposal. "

""The power outage caused a brief disconnect in the video call, and we had to reconnect." "