disbelieve
🇺🇸
/ˌdɪsbɪˈliːv/
🇬🇧
/ˌdɪsbɪˈliːv/
To think that something is not true or that someone is not telling the truth.
I disbelieve the rumors about the company's bankruptcy.
私は、会社の破産についての噂を信じません。