Source : Webster's Revised Unabridged Dictionary (1913)

Stolid \Stol"id\, a. [L. stolidus.]
   Hopelessly insensible or stupid; not easily aroused or
   excited; dull; impassive; foolish.

Source : WordNet®

stolid
     adj : 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" [syn: {impassive}]