mental         
adjective uk/ˈmen.təl/ us/-t̬əl/
B2 [ before noun ]精神的;思想上的;心理的 
relating to the mind, or involving the process of thinking
  The family has a history of mental disorder. 这个家庭有精神失常的病史。 
 A doctor was asked about the mental state of the prisoner. 一名医生被询问狱中服刑人员的神经状态。 
 She had a mental picture (= a picture in her mind) of how the house would look when they finished redecorating it. 她脑海中已有了房子装修好以后的样子。 
 Compare: physical adjective (BODY)
  UK slang疯癫的,不正常的 
crazy
 - More examples
 - This job requires considerable mental agility.
 - These mental exercises are designed to break linear thinking habits and encourage the creativity that is needed for innovation.
 - He suffers periodic mental breakdowns.