adjective
BAD : We get very boring with the same food every day.
GOOD : We get very bored with the same food every day.
BAD : You'll be boring with nothing to do.
GOOD : You'll be bored with nothing to do.
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If someone or something is boring/exciting/frightening/interesting
(-ING), you feel bored/excited/frightened/interested (-ED): 'The lecture was terribly boring. Some of us were so bored that we fell asleep.'