uncertainty or fluctuation, especially when caused by inability to make a choice or by a simultaneous desire to say or do two opposite or conflicting things.
2.
Psychology. the coexistence within an individual of positive and negative feelings toward the same person, object, or action, simultaneously drawing him or her in opposite directions.
"simultaneous conflicting feelings," 1924, from Ger. Ambivalenz, coined 1910 by Swiss psychologist Eugen Bleuler (18571939) on model of Ger. Equivalenz "equivalence," etc., from L. ambi- "both" (see ambi-) + valentia "strength," from prp. of valere "be strong" (see
valiant). A psychological term that by 1929 had taken on a broader literary and general sense.