dis ‧ prove /dɪsˈpruːv/ BrE AmE verb [transitive]
[ Word Family: verb : ↑ prove ≠ ↑ disprove ; noun : ↑ proof ; adjective : ↑ proven ≠ ↑ unproven ]
to show that something is wrong or not true OPP prove :
These figures disproved Smith’s argument.
—disproof /-ˈpruːf/ noun [uncountable and countable] formal