IPA: /ɪlɪbəˈræləti/
KK: /ɪlɪbərælɪti/
The quality of being narrow-minded or not generous in terms of ideas, opinions, or behavior.
His illiberality made it difficult for him to accept new ideas from others.
Illiberality is formed from "in-" (meaning not) and "liberalis" (from Latin, meaning generous or free). The word describes a state of being not generous or lacking in freedom of thought or action.
Think of 'not' ('in-') being generous ('liberalis') — that's why illiberality means a lack of generosity.