restrained

1. Cool and formal in manner (synset 300724494)
   similar to: undemonstrative - not given to open expression of emotion
   same as: reticent, unemotional
2. Under restraint (synset 302007214)
   also:

   • controlled - restrained or managed or kept within certain bounds
   • inhibited - held back or restrained or prevented
   • reserved - marked by self-restraint and reticence
   similar to:

   • close - strictly confined or guarded
   • low-key, low-keyed, subdued - restrained in style or quality
   • unexpansive - not given to high spirits or effusiveness
3. Marked by avoidance of extravagance or extremes (synset 302410802)
   "moderate in his demands"; "restrained in his response"
   similar to: temperate - not extreme in behavior
   same as: moderate
4. Not showy or obtrusive (synset 301855098)
   "clothes in quiet good taste"
   similar to: unostentatious, unpretending, unpretentious - not ostentatious
   same as: quiet
5. Prudent (synset 300327100)
   "guarded optimism"
   similar to: cautious - showing careful forethought
   same as: guarded

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