1. (

• impassive ,
• stolid

) having or revealing little emotion or sensibility; not easily aroused or excited; "her impassive remoteness"; "he remained impassive, showing neither interest in nor concern for our plight"- Nordhoff & Hall; "a silent stolid creature who took it all as a matter of course"-Virginia Woolf; "her face showed nothing but stolid indifference" ;

2. (

• deadpan ,
• expressionless ,
• impassive ,
• poker-faced ,
• unexpressive

) deliberately impassive in manner; "deadpan humor"; "his face remained expressionless as the verdict was read" ;