1. Having a form maintained by a rigid internal structure as well as by internal gas pressure 
2. Not fully rigid

See also: inflexible, rigid

• EW
• ewe
• Ewenki
• ewer
• Ewing's sarcoma
• Ewing's tumor
• Ewing's tumour
• ex
• ex ante
• ex cathedra
• ex gratia
• ex libris
• ex nihilo
• ex officio
• ex parte
• ex post facto
• ex vivo
• ex-boyfriend
• ex-con
• ex-convict
• ex-directory
• ex-gambler
• ex-husband
• ex-mayor
• ex-president