Meaning of CONSTRUCTIVE in English

CONSTRUCTIVE

con ‧ struc ‧ tive AC /kənˈstrʌktɪv/ BrE AmE adjective

useful and helpful, or likely to produce good results:

The meeting was very constructive.

We welcome any constructive criticism.

—constructively adverb

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.