s, a, d, e, f, l, n, c, m, t, i, v are letters that make 'mental defectiveness'
defect, ti, NT, EC, men, en, SS, ENE, defective, mental, iv, ECT, CT, IV, AL, DE, ME, NE, ness, defectiveness, Al, Es, Fe, Ne, Ta, Ti are words within 'mental defectiveness'
1 possible definitions for 'mental defectiveness'
Under this definition, mental defectiveness is a noun and has the following properties:
abnormality has the same meaning as mental defectiveness
'mental defectiveness' can be a type of slowness, retardation, mental retardation, backwardness, subnormality.
feeblemindedness is a type of mental defectiveness.
abnormal is a derivative of mental defectiveness.