GRE vocab surfeit

Now they're training us like picayune pygmies
wearing pj's... meretricious words to take in
brains like testicles, when the pith is hidden
by the pitch: the ball's path is specious, capricious;
it is, in other words, a knuckle-ball. Given to
freakish notions and whims. Given generously?
Why, that's munificent. Salutary, for example,
means healthful, also salubrious. But dare I be
pedantic? Betraying a scholarship lacking in
common sense and relative motion? Which is
important - the relativity - for even a taciturn
mouse (not a peep) inures fracas when seemingly
saturnine rats prove mercurial, all along, the
truth obscured by an opaque window that fronts
-- what windowed effrontery! -- the rat's
capacious home.