non-retractable
non-retractable — adjective
1. used for a part, tool, or object that stays out and cannot be pulled back inside
used for a part, tool, or object that stays out and cannot be pulled back inside when it is in use.
The toy sword had a <hl>non-retractable</hl> blade, so it would not slide in.
collocation: non-retractable blade
Because the radio had a <hl>non-retractable</hl> antenna, Nora wrapped it in a towel.
The safety knife is <hl>non-retractable</hl>, so the cover must stay on.
The mechanic checked the plane's <hl>non-retractable</hl> landing gear before takeoff.
Ken chose a <hl>non-retractable</hl> leash because the puppy kept snapping thin cords.
- retractable
can slide or fold back inside after being used
- folding
can be bent or closed into a smaller shape
文法句型
non-retractable + blade/antenna/leash/landing gear
be + non-retractable
用法筆記
Usually modifies physical parts such as blades, antennas, leashes, or landing gear. It focuses on a design feature: the item stays extended or exposed instead of sliding back inside.