All feasible antonyms

adj feasible

• disadvantageous — characterized by or involving disadvantage; unfavorable; detrimental.
• inappropriate — not appropriate; not proper or suitable: an inappropriate dress for the occasion.
• implausible — not plausible; not having the appearance of truth or credibility: an implausible alibi.
• impractical — not practical or useful.
• unfeasible — capable of being done, effected, or accomplished: a feasible plan.
• worthless — without worth; of no use, importance, or value; good-for-nothing: a worthless person; a worthless contract.
• unsuitable — not suitable; inappropriate; unfitting; unbecoming.
• inconceivable — not conceivable; unimaginable; unthinkable.
• unlikely — not likely to be or occur; improbable; marked by doubt.
• unpractical — not practical; impractical; lacking practical usefulness or wisdom.
• unprofitable — being without profit; not showing or turning a profit: a series of unprofitable ventures.
• unhelpful — giving or rendering aid or assistance; of service: Your comments were very helpful.
• impossible — not possible; unable to be, exist, happen, etc.
• unworkable — practicable or feasible: He needs a workable schedule.
• improper — not proper; not strictly belonging, applicable, correct, etc.; erroneous: He drew improper conclusions from the scant evidence.
• unfitting — suitable or appropriate; proper or becoming.
• unattainable — capable of being attained.
• unreasonable — not reasonable or rational; acting at variance with or contrary to reason; not guided by reason or sound judgment; irrational: an unreasonable person.