Big Huge Thesaurus

rigidness

noun

• rigidity
• inflexibility
• inelasticity
• unadaptability

antonyms

• flexibility

sounds kind of like

• racketiness
• raggedness
• reactance
• recasting
• receding
• recoding
• requisiteness
• residence
• residency
• resistance
• rest mass
• ricketiness
• right wing
• right-wing
• rightness
• roasting
• ruggedness
• rustiness
• rusting