Noun, Noun which may take the genitive case particle 'no', Na-adjective (keiyodoshi)
fierce look; frightening look; tough look
強面の変なセールスだったらすぐアタシを呼びなさいね、追い返してやるから。If it's an aggressive strange salesman, then call me right away. I'll chase him off. aggressive attitude; coercive attitude; taking a hard line
Also written 怖面【こわもて】