"rigidifying" in the noun sense
1. stiffening, rigidifying, rigidification
the process of becoming stiff or rigid
"rigidifying" in the verb sense
1. rigidify
become rigid
"The body rigidified"
2. rigidify, ossify, petrify
make rigid and set into a conventional pattern
"rigidify the training schedule"
"ossified teaching methods"
"slogans petrify our thinking"
Source: WordNet® (An amazing lexical database of English)
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