overgeneralization
noun/ˌəʊvədʒenrəlaɪˈzeɪʃn/
/ˌəʊvərdʒenrələˈzeɪʃn/
(British English also overgeneralisation)
[countable, uncountable]- a statement that is not accurate because it is too general; the act of making a statement that is too general
Check pronunciation:
overgeneralization