Need another word that means the same as “impossible”? Find 28 synonyms and 30 related words for “impossible” in this overview.
The synonyms of “Impossible” are: inconceivable, out of the question, unimaginable, unacceptable, not possible, not worth considering, unattainable, unachievable, unobtainable, hopeless, impractical, implausible, impracticable, unworkable, unbearable, intolerable, unendurable, unsustainable, unmanageable, intractable, recalcitrant, wayward, objectionable, difficult, demanding, awkward, perverse, ungovernable
According to the Oxford Dictionary of English, “impossible” as an adjective can have the following definitions:
| awkward | Deliberately unreasonable or uncooperative. Some awkward questions. |
| demanding | (of a task) requiring much skill or effort. A baby can be so demanding. |
| difficult | Characterized by or causing hardships or problems. A difficult child. |
| hopeless | (informal to emphasize how bad it is) beyond hope of management or reform. In an agony of hopeless grief. |
| implausible | Highly imaginative but unlikely. This is a blatantly implausible claim. |
| impracticable | Not capable of being carried out or put into practice. It was impracticable to widen the road here. |
| impractical | (of a person) not skilled or interested in doing practical work. An impractical solution. |
| inconceivable | Not capable of being imagined or grasped mentally; unbelievable. It seemed inconceivable that the president had been unaware of what was going on. |
| intolerable | Incapable of being tolerated or endured. The intolerable pressures of his work. |
| intractable | Hard to control or deal with. Intractable pain. |
| not possible | Existing in possibility. |
| not worth considering | Worthy of being treated in a particular way (often used ironically. |
| objectionable | Causing disapproval or protest. Found the politician s views objectionable. |
| out of the question | Directed outward or serving to direct something outward. |
| perverse | Marked by a disposition to oppose and contradict. An evil life dedicated to perverse pleasure. |
| recalcitrant | Marked by stubborn resistance to authority. The University suspended the most recalcitrant demonstrators. |
| unacceptable | Not satisfactory or allowable. The coach told his players that defeat was unacceptable. |
| unachievable | (of an aim or objective) too difficult to be achieved. An unachievable political goal. |
| unattainable | Impossible to achieve. An unattainable goal. |
| unbearable | Not able to be endured or tolerated. The heat was getting unbearable. |
| unendurable | Not able to be tolerated or endured. Cries of unendurable suffering. |
| ungovernable | Impossible to control or govern. An ungovernable impulse to run away. |
| unimaginable | Totally unlikely. Lives of almost unimaginable deprivation. |
| unmanageable | Incapable of being controlled or managed. An unmanageable situation. |
| unobtainable | Not capable of being obtained. Timber is virtually unobtainable in the islands. |
| unsustainable | Not able to be maintained at the current rate or level. Both remarks are unsustainable. |
| unworkable | (of a material) not able to be worked. The alloy becomes brittle and almost unworkable. |
| wayward | Difficult to control or predict because of wilful or perverse behaviour. A wayward adolescent. |
| astounding | Bewildering or striking dumb with wonder. The summit offers astounding views. |
| farfetched | Highly imaginative but unlikely. A farfetched excuse. |
| illogical | Lacking in correct logical relation. An illogical fear of the supernatural. |
| implausible | (of an argument or statement) not seeming reasonable or probable; failing to convince. Gave the teacher an implausible excuse. |
| impracticable | Not capable of being carried out or put into practice. Refloating the sunken ship proved impracticable because of its fragility. |
| improbable | Too improbable to admit of belief. An improbable event. |
| improbably | Not easy to believe. Everyone in the film is improbably gorgeous. |
| inconceivable | Totally unlikely. They behaved with inconceivable cruelty. |
| incredible | Very good; wonderful. The book s plot is simply incredible. |
| incredibly | Used to introduce a statement that is hard to believe; strangely. Michele was incredibly brave. |
| indefensible | Incapable of being justified or explained. This behaviour is morally indefensible. |
| inordinate | Unusually or disproportionately large; excessive. The case had taken up an inordinate amount of time. |
| irrational | An irrational number or quantity a surd. Irrational animals. |
| levity | The treatment of a serious matter with humour or lack of due respect. As an attempt to introduce a note of levity the words were a disastrous flop. |
| miraculously | In a remarkable and extremely lucky manner. A shrine where people bring the sick to be miraculously healed. |
| mission | A building or group of buildings used by a Christian mission. Gandhi s attitude to mission and conversion. |
| surprising | Causing surprise; unexpected. Leaped up with surprising agility. |
| try | An act of trying something new or different to see if it is suitable effective or pleasant. She agreed that they should give the idea a try. |
| unacceptable | Not satisfactory or allowable. An unacceptable violation of personal freedom. |
| unbelievable | Beyond belief or understanding. Your audacity is unbelievable. |
| unbelievably | Not easy to believe. The show went unbelievably well. |
| unconvincing | Not convincing. A slightly bizarre and unconvincing fusion of musical forces. |
| undue | Unwarranted or inappropriate because excessive or disproportionate. I didn t want to show undue excitement. |
| unimaginable | Totally unlikely. Lives of almost unimaginable deprivation. |
| unjustifiable | Not able to be shown to be right or reasonable. An unjustifiable restriction on their freedom. |
| unlikely | Having a probability too low to inspire belief. An unlikely explanation. |
| unreasonable | Beyond normal limits. An unreasonable request. |
| unreliable | Not able to be relied upon. In the early 1950s computers were large and expensive and unreliable. |
| untenable | (especially of a position or view) not able to be maintained or defended against attack or objection. This argument is clearly untenable. |
| unthinkable | Incapable of being conceived or considered. It was unthinkable that John could be dead. |
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