Synonyms of the word 
STOLID → IMPASSIVE - UNEMOTIONAL
stolid
- adj. Having or revealing little emotion or sensibility.
impassive
- adj. Having, or revealing, no emotion.
- adj. Still or motionless.
unemotional
- adj. Showing little or no feeling.
- adj. Reasoned and objective, involving reason or intellect rather than feelings.
If you are interested in words, visit the following sites :
- wiktionary.org/stolid For complete definition of a word
- 1word.ws/stolid to play with words, suffixs, prefixs, etc.