rigider
adjective (comparative)UK /ˈrɪdʒɪdə/
US /ˈrɪdʒɪdər/
More stiff and hard to bend.
This new plastic is rigider than the old one.
RELATED WORDS
OTHER MEANINGS
2. Stricter or less willing to change.
The school became rigider about its rules this year.
3. More fixed and firmly set in place.
The frame is rigider now that we added extra screws.
4. More severe or unyielding in manner.
His expression grew rigider as he listened.