All 3 Uses

capricious
in
Great Expectations
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I had known, from the time when I could speak, that my sister, in her capricious and violent coercion, was unjust to me.†
p. 64.9

capricious = impulsive or unpredictable
Biddy was never insulting, or capricious, or Biddy to-day and somebody else to-morrow; she would have derived only pain, and no pleasure, from giving me pain; she would far rather have wounded her own breast than mine.†
p. 138.6
That girl's hard and haughty and capricious to the last degree, and has been brought up by Miss Havisham to wreak revenge on all the male sex.
p. 185.3 *

Definitions:

(1) (capricious)
impulsive or unpredictable or tending to make sudden changes -- especially impulsive behavior
(2) (meaning too rare to warrant focus)