Antonyms of adj deliberative

1 sense of deliberative

Sense 1
deliberative -- (involved in or characterized by deliberation and discussion and examination; "a deliberative body")

INDIRECT (VIA thoughtful) -> thoughtless -- (showing lack of careful thought; "the debate turned into thoughtless bickering")

Similarity of adj deliberative

1 sense of deliberative

Sense 1
deliberative -- (involved in or characterized by deliberation and discussion and examination; "a deliberative body")
       => thoughtful (vs. thoughtless) -- (exhibiting or characterized by careful thought; "a thoughtful paper")