forbidding

/fərˈbɪdɪŋ/
adjective
  1. Having a frightening, unfriendly, or threatening appearance or manner.
    • Her teacher's forbidding expression made the students too nervous to ask questions.
    • The hikers turned back when they saw the forbidding cliffs ahead.
    • The old mansion looked dark and forbidding in the moonlight.
noun
  1. The act of ordering someone not to do something; a prohibition.
    • The forbidding of loud music after midnight was a new rule in the dorm.
    • The forbidding of certain books in the library caused a public debate.
    • His forbidding of any discussion about the topic only made people more curious.