Antonyms of adj a-okay

1 sense of a-okay

Sense 1
a-ok (predicate), a-okay (predicate) -- (in perfect condition or order)

INDIRECT (VIA go) -> no-go -- (not functioning properly or in suitable condition for proceeding; "the space launch was no-go")

Similarity of adj a-okay

1 sense of a-okay

Sense 1
a-ok (predicate), a-okay (predicate) -- (in perfect condition or order)
       => go (vs. no-go) -- (functioning correctly and ready for action; "all systems are go")