Translation guide
Describes something that can be pulled back, drawn in, or folded away. The most common Japanese equivalent is 格納式 (kakunō-shiki), but the natural translation depends on what is being retracted.
This airplane has retractable landing gear.
Literally 'pull-in type'. Often used for retractable parts like antennas, cords, or landing gear.
The retractable antenna broke.
Means 'storable type'. Used for items that can be put away, like retractable roofs or screens.
It's a car with a retractable roof.
Means 'telescopic type'. Used for things that extend and retract, like a pointer or a leash.
I use a retractable leash.
Describing claws that can be drawn back into the paw.
Describing a pen or pencil with a tip that can be extended and retracted.
Describing a cord or hose that can be wound back into a case.
Literally 'wind-up type'. Used for retractable cords, hoses, or tape measures.
A retractable extension cord is easy to store.
In Japanese, 'retractable' is usually expressed as a compound with 式 (shiki, 'type'). The first part describes the action: 格納 (storage), 引き込み (pulling in), 収納 (storing), 伸縮 (telescoping), 巻き取り (winding). Choose based on the object.
A cheetah's claws are retractable.
A retractable pen is more convenient.