Examples of using "страшен" in a sentence and their english translations:
The world outside is very scary.
The devil is not so black as he is painted.
You better not oppose Tom that much. He's scary when he's mad.
Tom doesn't mind the cold, but Mary can't stand it.
The policeman who is easily frightened is funny; the policeman who is indifferent to the misfortunes of others is terrible.
"I'm telling you right now: I'm terrible when angry," said Tom quietly but convincingly. "I don't advise anyone to test my patience."