WordWeb Online

1. Capable or worthy of being perceived
   "noticeable shadows under her eyes"; "noticeable for its vivid historical background"; "a noticeable lack of friendliness"
    
2. Capable of being detected
   "after a noticeable pause the lecturer continued";
   - detectable
    
3. Not easily ignored; undesirably or intrusively noticeable
   "the noticeable behaviour of a spoiled child";
   - obtrusive
    
4. Readily noticed
   "a noticeable resemblance"

See also: broad, detectable, discernible, evident, marked, noted, noticeability, noticeableness, observable, obviousness, patency, perceptible, pronounced, strong

Antonym: unnoticeable

Encyclopedia: Noticeable