non-rigid
adjective
(alsononrigid)uk/ˌnɒnˈrɪdʒ.ɪd/us/ˌnɑːnˈrɪdʒ.ɪd/ableto bebentormoved; notstifforfixed:
Theseairshipshave non-rigidframes.
Most of themanufacturersselltheirproductsin nonrigidbags.
- Thearmyandnavypreferto use non-rigid air-ships.
 - Therobotswereabletofoldnonrigiditemssuch astowelsintofixedshapes.
 - Handling non-rigidmaterialsisdifficult, becausetheirflexibilityletsthem take on differentshapes.
 - Non-rigidairshipswereabletoremainin theskyfor manyhoursandsenddownreportsbywireless.
 
Flexible, loose and yielding
- adrift
 - bendable
 - bendy
 - ductile
 - ductility
 - flowing
 - fullness
 - jointed
 - limply
 - limpness
 - loose-fitting
 - pliantly
 - relax
 - rubbery
 - slack
 - slacken
 - slackly
 - sloppy
 - unstuck
 - yielding