stolidity
noun
- having the attribute of being stolid; dull impassiveness; incapacity for feeling
Wiktionary
noun
Etymology: From stolid + -ity, from Middle French stolidité, from Late Latin stoliditas.
- The property of being stolid; unemotionality.
“"[…] So many people find the world a dreary residence," Mr. Calverley sighed, "that it is really a pity some one of these long-faced stolidities cannot die now instead of me. For I have found life wonderful throughout."”