Select the INCORRECTLY spelt word.

Psychological Operational  Disapointmant Positioning

Disapointmant

The incorrectly spelled word is Disapointmant. The correct spelling is Disappointment. The word "Disappointment" means "a feeling of sadness or dissatisfaction caused by the non-fulfillment of one's hopes or expectations". The other words, "Psychological", "Operational", and "Positioning" are all spelled correctly.