Source : Webster's Revised Unabridged Dictionary (1913)

Illiberal \Il*lib"er*al\, a. [L. illiberalis; pref. il- not +
   liberalis liberal: cf. F. illib['e]ral.]
   1. Not liberal; not free or generous; close; niggardly; mean;
      sordid. ``A thrifty and illiberal hand.'' --Mason.

   2. Indicating a lack of breeding, culture, and the like;
      ignoble; rude; narrow-minded; disingenuous.

   3. Not well authorized or elegant; as, illiberal words in
      Latin. [R.] --Chesterfield.

Source : WordNet®

illiberal
     adj : narrow-minded about cherished opinions [syn: {intolerant}]