:to give a false impression of
- Her gentleness belies her strength.
:to present an appearance not in agreement with
- His manner and appearance belie his age.
:to show (something) to be false or wrong
- The evidence belies their claims of innocence.
:to run counter to :contradict
- … appeared to belie all the rosy things I had heard about it.
- —Katherine T. Kinkead
- An air of rural charm … belies the community's industrial activity.
- —American Guide Series: Pennsylvania