Antonyms of adj spur-of-the-moment

1 sense of spur-of-the-moment

Sense 1
spur-of-the-moment -- (in response to an unforeseen need; "a spur-of-the-moment party")

INDIRECT (VIA unprepared) -> prepared -- (made ready or fit or suitable beforehand; "a prepared statement"; "be prepared for emergencies")

Similarity of adj spur-of-the-moment

1 sense of spur-of-the-moment

Sense 1
spur-of-the-moment -- (in response to an unforeseen need; "a spur-of-the-moment party")
       => unprepared (vs. prepared) -- (without preparation; not prepared for; "unprepared remarks"; "the shock was unprepared"; "our treaty makers approached their immensely difficult problems unprepared"- R.E.Danielson)