WordWeb Online

1. Arousing no interest or attention or curiosity or excitement
   "a very uninteresting account of her trip"
    
2. Characteristic or suggestive of an institution especially in being uniform or dull or unimaginative

See also: boring, deadening, draggy, dull, earthbound, ho-hum, insipid, institutional, interest, interestingness, irksome, jejune, narcotic, pedestrian, ponderous, prosaic, prosy, putdownable, slow, soporiferous, soporific, tedious, tiresome, unamusing, unexciting, uninterestingly, uninterestingness, unstimulating, wearisome

Antonym: interesting

Encyclopedia: Uninteresting