Synonyms of the word

impossibility

• n. Something that is impossible.
• n. (uncountable) The quality of being impossible.
• n. (obsolete) Inability; helplessness.

alternative

• adj. Relating to a choice between two or more possibilities.
• adj. Not traditional, outside the mainstream, underground (e.g., alternative medicine, alternative lifestyle,…
• adj. Other.
• adj. alternate; reciprocal.
• n. A situation which allows a mutually exclusive choice between two or more possibilities; a choice between…
• n. One of several mutually exclusive things which can be chosen.
• n. The remaining option; something available after other possibilities have been exhausted.

choice

• n. An option; a decision; an opportunity to choose or select something.
• n. One selection or preference; that which is chosen or decided; the outcome of a decision.
• n. Anything that can be chosen.
• n. (usually with the) The best or most preferable part.
• n. (obsolete) Care and judgement in selecting; discrimination, selectiveness.
• n. (obsolete) A sufficient number to choose among.
• adj. Especially good or preferred.
• adj. (slang, New Zealand) Cool; excellent.
• adj. (obsolete) Careful in choosing; discriminating.

impossibleness

• n. Quality of being impossible.

nonentity

• n. an unimportant or insignificant person.
• n. (uncountable): the state of not existing; nonexistence.

nonexistence

• n. The state of not existing.

option

• n. One of a set of choices that can be made.
• n. The freedom or right to choose.
• n. (finance, law) A contract giving the holder the right to buy or sell an asset at a set strike price; can…
• n. (graphical user interface) A button on a screen used to select an action (often "menu option").
• v. To purchase an option on something.
• v. (computing, dated) To configure, by setting an option.