Impossible and Impassible are often mixed up. Impossible (adjective) means Not able to occur, exist, or be done, while Impassible (adjective) means incapable of suffering or feeling pain.
Meaning: Not able to occur, exist, or be done.
Synonyms: Not Possible, Beyond The Bounds Of Possibility, Out Of The Question, Not Worth Considering; Unfeasible, Impractical, Impracticable, Non-Viable, Unworkable.
Example: The heavy rain made it impossible to see the road.
Meaning: incapable of suffering or feeling pain.
Synonyms: Callous, Impassive, Indifferent, Insensible.
Example: He was so impassible with the poor child that despite having money he did not help the child.
