As adjectives the difference between impassable and impassive
is that impassable is incapable of being passed over, crossed, or negotiated while impassive is having, or revealing, no emotion.
impassable
English
Adjective
(
en adjective)
Incapable of being passed over, crossed, or negotiated.
(of an obstacle) Incapable of being overcome or surmounted.
(of currency) Not useable as legal tender.
Synonyms
* unpassable
See also
* impassible
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impassive
English
Adjective
(
en adjective)
Having, or revealing, no emotion.
Still or motionless.
Synonyms
* apathetic, phlegmatic