trivialize
verb
[ ˈtrɪvɪəlʌɪz ]
• make (something) seem less important, significant, or complex than it really is.
• "the problem was either trivialized or ignored by teachers"
Similar:
treat as unimportant,
minimize,
play down,
underplay,
make light of,
treat lightly,
make little of,
think little of,
laugh off,
dismiss,
underestimate,
undervalue,
devalue,
belittle,
deprecate,
scoff at,
pooh-pooh,
hold cheap,
misprize,
derogate,
minify,
Opposite:
make a big thing of,