forbidding：使人望而生畏的，严峻的，不友好的

词根词缀：forbid(d双写)禁止 + -ing

• though
• thought
• thoughtcrime
• thoughtful
• thoughtless
• thousand
• thrall
• thrash
• thread
• threadbare
• threat
• threaten
• three
• threnody
• thresh
• threshold
• thrice
• thrift
• thrill
• thriller
• thrilling
• thrive
• throat
• throaty
• throe