"impossible" | Definition and Related Words

Adjective

Not capable of occurring or being accomplished or dealt with (synset 301828578)
"an impossible dream"; "an impossible situation"
also:
- hopeless - without hope because there seems to be no possibility of comfort or success
- impractical - not practical; not workable or not given to practical matters
- unrealistic - not realistic
- insurmountable, unsurmountable - not capable of being surmounted or overcome
- unthinkable - incapable of being conceived or considered
tells us about: possibility, possibleness - capability of existing or happening or being true
similar to:
- hopeless - certain to fail
- impracticable, infeasible, unfeasible, unworkable - not capable of being carried out or put into practice
- out - not worth considering as a possibility
- unachievable, unattainable, undoable, unrealizable - impossible to achieve
Totally unlikely (synset 302427488)
similar to: unthinkable - incapable of being conceived or considered

same as: inconceivable, out of the question, unimaginable
(used of persons or their behavior) not acceptable or reasonable (synset 302445119)
"impossible behavior"

similar to: intolerable, unbearable, unendurable - incapable of being tolerated or endured

same as: unacceptable

Noun

Something that cannot be done (synset 105800454)
"his assignment verged on the impossible"

is a type of: impossibility, impossible action - an alternative that is not available