[1] : The Collaborative International Dictionary of English v.0.48

inestimable \ines"timable\, a. l. inaestimabilis: cf. f.
   inestimable. see in- not, and estimate.
   incapable of being estimated or computed; especially, too
   valuable or excellent to be measured or fully appreciated;
   above all price; as, inestimable rights or privileges.
   1913 webster

         but above all, for thine inestimable love. --bk. of
                                                  com. prayer.
   1913 webster

         science is too inestimable for expression by a money
         standard.                                --lyon
                                                  playfair.

   syn: incalculable; invaluable; priceless.
        1913 webster
see also:
in- estimate 

[2] : WordNet (r) 2.0

inestimable
     adj : beyond calculation or measure; "of incalculable value"; "an
           incomputable amount"; "jewels of inestimable value";
           "immeasurable wealth" syn: incomputable, immeasurable
see also:
incomputable immeasurable 

[3] : Moby Thesaurus II by Grady Ward, 1.0

23 moby thesaurus words for "inestimable":
   beyond price, certain, dear, golden, good as gold, immeasurable,
   ineluctable, ineludible, inescapable, invaluable, measureless,
   necessary, of great price, precious, priceless, rich, unavoidable,
   uncountable, unevadable, unmeasurable, unmeasured, valuable,
   worthy

Inestimable >> I Words
Inestimable, definition of term: Inestimable
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