1) Abortive 2) An unsuccessful venture 3) Attempted 4) Botched 5) Bungled 6) Defeated 7) Disappointed 8) Disastrous 9) Discomfited 10) Done for 11) Empty-handed 12) Failed 13) Failing 14) Foiled 15) Fruitless 16) Frustrated 17) Futile 18) Goalless 19) Hitless 20) No-win 21) Not achieving 22) Not successful 1) Abortive 2) Attempted 3) Defeated 4) Disappointed 5) Discomfited 6) Failed 7) Failing 8) Foiled 9) Frustrated 10) Goalless 11) Hitless 12) Incompetent 13) Ineffective 14) Manque 15) Scoreless 16) Shameful 17) Stillborn 18) Sunk 19) Thwarted 20) Unbeneficial 21) Unfortunate 22) Unfruitful 23) Unfulfilled 
• (a.) Not successful; not producing the desired event; not fortunate; meeting with, or resulting in, failure; unlucky; unhappy.
[adj] - not successful
adjective not successful; having failed or having an unfavorable outcome
not achieving or not attended with success: an unsuccessful person; an unsuccessful venture.