restrained

Adjective

• prudent
  • guarded optimism
    

• not showy or obtrusive
  • clothes in quiet good taste
    

• marked by avoidance of extravagance or extremes
  • moderate in his demands
    
  • restrained in his response
    

• under restraint

• cool and formal in manner

Related words

• Synonyms: 
  guarded , quiet , moderate , reticent , unemotional