Antonyms of adj excogitative

1 sense of excogitative

Sense 1
excogitative -- (concerned with excogitating or having the power of excogitation)

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

Similarity of adj excogitative

1 sense of excogitative

Sense 1
excogitative -- (concerned with excogitating or having the power of excogitation)
       => thoughtful (vs. thoughtless) -- (exhibiting or characterized by careful thought; "a thoughtful paper")