antidivision adjective 1noun 1forms 1 adjective1 •Opposing or countering geopolitical division.Much of the northern antidivision sentiment in 1887 was rooted in the fear that statehood for the southern half alone might doom the north to indefinite territorial status. — 1968 noun1 •A particular extension of the antijoin operator.It can be noticed that an antidivision is nothing but an antijoin followed by a projection over X […] — 2008 formsantidivisions