1having or intended to have a useful or beneficial purpose:constructive advice
2 Law not obvious or stated explicitly; derived by inference:constructive liability
3 Mathematics relating to, based on, or denoting mathematical proofs which show how an entity may in principle be constructed or arrived at in a finite number of steps.
Derivatives
constructively
adverb
constructiveness
noun
Origin:
mid 17th century(in sense 2): from late Latin constructivus, from Latin construct- 'heap together', from the verb construere(see construct)
constructive in other Oxford dictionaries
Definition of constructive in the US English dictionary