"not partial, not favoring one over another," 1590s, from assimilated form of in- (1) "not, opposite of" + partial. First recorded use is in "Richard II." Related: Impartially.
the cold neutrality of an impartial judge
the impartial eye of a scientist
impalpable
impanate
impanel
imparity
impart
impartial
impartiality
impartible
impassable
impasse
impassible
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