WordWeb Online

1. Pretentious (especially with regard to language or ideals)
   "high-flown talk of preserving the moral tone of the school";
   - high-sounding, inflated
    
2. Of high moral or intellectual value; elevated in nature or style
   "argue in terms of high-flown ideals";
   - exalted, elevated, sublime, grand, high-minded, lofty, rarefied, rarified, idealistic, noble-minded

See also: noble, pretentious