Search Result for "unbelievable": 
Wordnet 3.0

ADJECTIVE (2)

1. beyond belief or understanding;
- Example: "at incredible speed"
- Example: "the book's plot is simply incredible"
[syn: incredible, unbelievable]

2. having a probability too low to inspire belief;
[syn: improbable, unbelievable, unconvincing, unlikely]



The Collaborative International Dictionary of English v.0.48:

Unbelievable \Unbelievable\
   See believable.


WordNet (r) 3.0 (2006):

unbelievable
    adj 1: beyond belief or understanding; "at incredible speed";
           "the book's plot is simply incredible" [syn:
           incredible, unbelievable] [ant: believable,
           credible]
    2: having a probability too low to inspire belief [syn:
       improbable, unbelievable, unconvincing, unlikely]