Wordnet 3.0
ADJECTIVE (1)
1. 
 beyond calculation or measure; 
- Example: "of incalculable value"- Example: "an incomputable amount"- Example: "jewels of inestimable value"- Example: "immeasurable wealth"[syn: incomputable, inestimable, immeasurable]
The Collaborative International Dictionary of English v.0.48:
Incomputable \In`com*put"a*ble\, a.
   Not computable.
   [1913 Webster]
WordNet (r) 3.0 (2006):
incomputable
    adj 1: beyond calculation or measure; "of incalculable value";
           "an incomputable amount"; "jewels of inestimable value";
           "immeasurable wealth" [syn: incomputable,
           inestimable, immeasurable]