Antonyms of adj constructive

2 senses of constructive

Sense 1
constructive (vs. destructive) -- (constructing or tending to construct or improve or promote development; "constructive criticism"; "a constructive attitude"; "a constructive philosophy"; "constructive permission")

destructive (vs. constructive) -- (causing destruction or much damage; "a policy that is destructive to the economy"; "destructive criticism")
        => annihilative, annihilating, devastating, withering -- (wreaking or capable of wreaking complete destruction; "possessing annihilative power"; "a devastating hurricane"; "the guns opened a withering fire")
        => blasting, ruinous -- (causing injury or blight; especially affecting with sudden violence or plague or ruin; "the blasting effects of the intense cold on the budding fruit"; "the blasting force of the wind blowing sharp needles of sleet in our faces"; "a ruinous war")
        => cataclysmal, cataclysmic -- (severely destructive; "cataclysmic nuclear war"; "a cataclysmic earthquake")
        => caustic, corrosive, erosive, vitriolic, mordant -- (of a substance, especially a strong acid; capable of destroying or eating away by chemical action)
        => crushing, devastating -- (physically or spiritually devastating; often used in combination; "a crushing blow"; "a crushing rejection"; "bone-crushing")
        => damaging, negative -- (designed or tending to discredit, especially without positive or helpful suggestions; "negative criticism")
        => erosive -- (wearing away by friction; "the erosive effects of waves on the shoreline")
        => iconoclastic -- (destructive of images used in religious worship; said of religions, such as Islam, in which the representation of living things is prohibited)
        => ravaging -- (ruinously destructive and wasting; "a ravaging illness")
        => soul-destroying -- (destructive to the spirit or soul; "soul-destroying labor")
        => wasteful -- (laying waste; "when wasteful war shall statues overturn"- Shakespeare)

Sense 2
constructive -- (emphasizing what is laudable or hopeful or to the good; "constructive criticism")

INDIRECT (VIA neutral, positive) -> negative -- (characterized by or displaying negation or denial or opposition or resistance; having no positive features; "a negative outlook on life"; "a colorless negative personality"; "a negative evaluation"; "a negative reaction to an advertising campaign")
INDIRECT (VIA positive, negative) -> neutral -- (possessing no distinctive quality or characteristics)

Similarity of adj constructive

2 senses of constructive

Sense 1
constructive (vs. destructive) -- (constructing or tending to construct or improve or promote development; "constructive criticism"; "a constructive attitude"; "a constructive philosophy"; "constructive permission")
       => creative -- (promoting construction or creation; "creative work")
       => formative, shaping, plastic -- (forming or capable of forming or molding or fashioning; "a formative influence"; "a formative experience")
       => formative -- (capable of forming new cells and tissues; "a formative zone in developing bone")
       => inferential -- (based on interpretation; not directly expressed)
       => reconstructive, rehabilitative -- (helping to restore to good condition; "reconstructive surgery"; "rehabilitative exercises")
       => structural -- (concerned with systematic structure in a particular field of study)
          Also See-> positive#1

Sense 2
constructive -- (emphasizing what is laudable or hopeful or to the good; "constructive criticism")
       => positive (vs. negative) (vs. neutral) -- (characterized by or displaying affirmation or acceptance or certainty etc.; "a positive attitude"; "the reviews were all positive"; "a positive benefit"; "a positive demand")