triv ‧ i ‧ al ‧ ize BrE AmE ( also trivialise British English ) /ˈtrɪviəlaɪz/ verb [transitive]
to make something seem less important or serious than it really is – used to show disapproval:
The article trivializes the whole issue of equal rights.
The debate has been trivialized by the media.
—trivialization /ˌtrɪviəlaɪˈzeɪʃ ə n $ -lə-/ noun [uncountable]