Here's the answer:
“危ない!”
(abunai!)
Watch a real native speaker say it:
Here's how it sounds in a textbook:
Fun fact: the hundreds of thousands of people learning Japanese with Memrise get this phrase correct 94.31% of the time!
(abunai!)
Fun fact: the hundreds of thousands of people learning Japanese with Memrise get this phrase correct 94.31% of the time!