no reaction
- indifferentLacking interest or concern
- stoicUncomplaining endurer of hardship
- unmovedNot stirred physically/emotionally
- blankWithout marks or content
- impassiveWithout visible emotion
poker face · silence · stillness · apathy · numb · unresponsive · deadpan · cold · detached · flat · muted · passive · inert · stony · expressionless · vacant · unfazed · cool
response intensity
no reactionoverreaction
Disproportionate emotional response
violent reaction · immediate reaction · visceral reaction · knee-jerk reaction · outburst
emotional expression
no reactionexpressiveness
Ability to convey emotion
hysterics · tears · anger · fury · excitement
chemical/physical reactivity
no reactionchemical reaction
Molecular bond rearrangement process
reaction · reactivity · exothermic reaction · combustion · chain reaction