Antonyms of adj willing_and_able

1 sense of willing and able

Sense 1
willing and able -- (not reluctant)

INDIRECT (VIA willing) -> unwilling -- (not disposed or inclined toward; "an unwilling assistant"; "unwilling to face facts")

Similarity of adj willing_and_able

1 sense of willing and able

Sense 1
willing and able -- (not reluctant)
       => willing (vs. unwilling) -- (disposed or inclined toward; "a willing participant"; "willing helpers")