कठोरता — inflexibility (Noun)
कड़ापन — inflexibility (Noun)
inflexibility — कठोरता]कड़ापन
Inflexibility — The quality or state of being inflexible, or not capable of being bent or changed; unyielding stiffness; inflexibleness; rigidity; firmness of will or purpose; unbending pertinacity; steadfastness; resoluteness; unchangeableness; obstinacy.