adj.
Behavioural/behavioral is used with these nouns: ↑ characteristic , ↑ difficulty , ↑ disorder , ↑ disturbance , ↑ ecology , ↑ economics , ↑ intervention , ↑ manifestation , ↑ measure , ↑ modification , ↑ pattern , ↑ problem , ↑ psychologist , ↑ response , ↑ science , ↑ scientist , ↑ symptom , ↑ therapist , ↑ therapy , ↑ trait