different between uncostable vs uncastable

English

Etymology

un- +? costable

Adjective

uncostable (not comparable)

1. Not costable.

Anagrams

• locust bean

English

Etymology

un- +? castable

Adjective

uncastable (comparative more uncastable, superlative most uncastable)

1. That cannot be cast (filled with, or allocated, a theatrical role).
   • 1974, New York Magazine (volume 7, number 3, 21 January 1974)

     Colleen Dewhurst, though in many ways wrong for the virtually uncastable Josie, is as lucid and luminous...
2. (computing, programming) That cannot be cast (converted to other data types).
   • 2000, Larry Wall, Tom Christiansen, Jon Orwant, Programming Perl

     They're strongly typed, uncastable pointers...

3. (medicine) That cannot be set in a cast.
   • 2005, Mercer Rang, Maya E Pring, Dennis Ray Wenger, Rang's children's fractures

     ...internal fixation in children with open, unstable, or otherwise uncastable forearm fractures...

4. That cannot be used for, or produced through, casting (manufacturing with a mould).
   • 1943, The Mining Magazine

     Casting must be done within a day or two of moulding or the moulds will begin to wind-dry and become uncastable...

   • 1982, Production engineering

     This allows the casting of otherwise uncastable materials, with acceptable rejection rates, and can increase ductility by as much as a factor of six.