Rice's theorem
free
barriotic
infecundable
raw
unmentionability
indeducible
dogmatical
dogmatic
consistency
nonclassifiable
Paris-Harrington theorem
abstract class
unquenching
unclockable
Kochen-Specker theorem
nonprogrammable
value restriction
noninitialized
nonsensicalness
uncomputability
beyond dispute
undecidable
universal grinder
uninterpretability
nonsuffixed
unutterability
nonspecification
pseudoalgorithm
nondestroyable
irretractable
nonshrinkable
imperative
nonprocessable
inobscurable
imperceivable
physically unclonable function
mathematical semantics
irrealizable
unendurability
contramodule
unequivocal
noncopyrightable
enigmatically
nondescribable
nonfactorizable
quenchlessness
nonconformism
unassailable
unforeseeableness