Not believe antonyms

What is the opposite word for Not believe?

• kipe
• become pregnant
• think up
• get the idea
• embark upon
• thought up
• depicture
• trump up
• take a shot
• attend to
• have hunch
• attended to
• conjecture
• read into
• set about
• take for granted
• grab hold of
• take stock in
• guesstimated
• boil down
• clap hands on
• get fingers on
• add up
• moonlight requisition
• imaged
• twigged
• glom onto
• count upon
• take over
• have a hunch