Unlikely

Un·like·ly

Unlikely

a.
  1. Not likely; improbable; not to be reasonably expected; as, an unlikely event; the thing you mention is very unlikely.
  2. Not holding out a prospect of success; likely to fail; unpromising; as, unlikely means.
  3. Not such as to inspire liking; unattractive; disagreeable. [Obs.]

Unlikely

adv.
  1. In an unlikely manner.