rigid vs unbewised

rigid

• Uncompromising. 

• Stiff, rather than flexible. 

• Fixed, rather than moving. 

• Rigorous and unbending. 

• An airship whose shape is maintained solely by an internal and/or external rigid structural framework, without using internal gas pressure to stiffen the vehicle (the lifting gas is at atmospheric pressure); typically also equipped with multiple redundant gasbags, unlike other types of airship. 

• A bicycle with no suspension system. 

unbewised

• Unconscious; unproven.