Analysis of profiles of (upsilon'; upsilon '' = 0) vibrational bands, (upsilon' = 0,1,2,4,5), recorded with partly resolved rotational structure using the B(3)1(5(3)P(1)) <- X(1)0(+)(5(1)S(0)) transition in CdAr is presented. The analysis allowed for determination of the B-v' and D-v' rotational constants, and new values of omega(e)' vibrational frequency and D-e' well depth of the B(3)1-state interatomic potential. The new characterization of the B(3)1 state in CdAr is closer to the result of recent ab initio calculations [Chem. Phys. Lett. 471 (2009) 29] than results of our previous study performed with vibrational resolution [Spectrochim. Acta A 56 (2000) 1613]. (C) 2013 Elsevier B.V. All rights reserved.