Antonyms of adj well-disposed

1 sense of well-disposed

Sense 1
friendly, favorable, well-disposed -- (inclined to help or support; not antagonistic or hostile; "a government friendly to our interests"; "an amicable agreement")

INDIRECT (VIA amicable) -> hostile -- (characterized by enmity or ill will; "a hostile nation"; "a hostile remark"; "hostile actions")

Similarity of adj well-disposed

1 sense of well-disposed

Sense 1
friendly, favorable, well-disposed -- (inclined to help or support; not antagonistic or hostile; "a government friendly to our interests"; "an amicable agreement")
       => amicable (vs. hostile) -- (characterized by friendship and good will)