a. 无价的, 无法估计的

[ adj ]
beyond calculation or measure
<adj.all>
of incalculable valuean incomputable amount
jewels of inestimable value
immeasurable wealth

Inestimable \In*es"ti*ma*ble\, 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.

But above all, for thine inestimable love. --Bk. of
Com. Prayer.

Science is too inestimable for expression by a money
standard. --Lyon
Playfair.

Syn: Incalculable; invaluable; priceless.