con·struc·tive 
/kənˈstrʌktɪv/ adjective
/kənˈstrʌktɪv/ adjective [more constructive; most constructive] : helping to develop or improve something : helpful to someone instead of upsetting and negative
▪ I tried to offer constructive criticism/suggestions/comments. ▪ Your feedback was not very constructive. ▪ The program helps people recently released from prison figure out how they can play a constructive role in society.
▪ I tried to offer constructive criticism/suggestions/comments. ▪ Your feedback was not very constructive. ▪ The program helps people recently released from prison figure out how they can play a constructive role in society.
— con·struc·tive·ly adverb
