Intolerance

noun excessive zeal or enthusiasm, especially for a particular cause or belief

• The rise of religious fanaticism has led to increased tensions in the region.
• His fanaticism for the local sports team knows no bounds.
• She's a total fanatic for that new band that just came out.
• The politician's fanaticism for power blinded him to the needs of the people.

noun There is no noun form of small minded, as it is a compound adjective.

adjective Small minded is an adjective that describes someone who is narrow-minded, lacking in open-mindedness or tolerance.

• The small minded individual refused to consider any viewpoints other than their own.
• Don't waste your time arguing with small minded people who can't see the bigger picture.
• I can't stand hanging out with small minded folks who are always judging others.
• A small minded approach to problem solving will only limit your potential for success.