(D) Temperamental and stolid describe opposite qualities; a temperamental person is filled with moods that rapidly change and that he expresses freely, while a stolid person has few moods and keeps his feelings mostly to himself. Mercurial and impassive have much the same relationship; a mercurial person is flighty and changeable, while an impassive person rarely changes his demeanor.
Brusque: rough and abrupt in manner or
speech; curt Also brusk
Hostile: having or showing ill will; unfriendly;
antagonistic
Sedate: 5L sedatus, pp. of sedare, to settle,
caus. of sedere, to SIT6 calm, quiet, or
composed; esp., serious and
unemotional; staid; decorous
Vivacious: full of life and animation; lively
Mercurial: having qualities attributed to the god
Mercury or supposedly influenced by the
planet Mercury; eloquent, clever, shrewd,
thievish, etc.
Intellectual: a person engaged in intellectual work.
a member of the intelligentsia