semirigid

sem·i·rig·id  (sm-rjd, sm-)

adj.

Partly or moderately rigid.

---

semirigid [ˌsɛmɪˈrɪdʒɪd]

adj

1. partly but not wholly rigid

2. (Engineering / Aeronautics) (of an airship) maintaining shape by means of a main supporting keel and internal gas pressure

Thesaurus

Adj.	1.	semirigid - having a form maintained by a rigid internal structure as well as by internal gas pressure aeronautics, astronautics - the theory and practice of navigation through air or space rigid - designating an airship or dirigible having a form maintained by a stiff unyielding frame or structure
	2.	semirigid - not fully rigid inflexible - resistant to being bent; "an inflexible iron bar"; "an inflexible knife blade";