Synset

not capable of occurring or being accomplished or dealt with
<adj.all> freq. cnt.: 34 freq. cnt.: 34

sample sentences

"an impossible dream"
"an impossible situation"

lexical pointers

antonym

derivationally related form

impossibleness impossibility

semantic pointers

also see

hopeless impractical insurmountable, unsurmountable unrealistic unthinkable

attribute

possibility, possibleness

similar to

hopeless impracticable, infeasible, unfeasible, unworkable out unachievable, unattainable, undoable, unrealizable