IPA: /ɪmˈpæsəblnəs/
KK: /ɪmˈpæsəblnəs/
The condition where something cannot be passed through or crossed, often due to obstacles or difficulties.
The heavy snowfall led to the impassableness of the mountain roads, making travel impossible.
Impassableness is formed from "im-" (meaning not) and "passable" (from Latin "passabilis", meaning able to be passed). The suffix "-ness" indicates a state or quality. Therefore, impassableness refers to the state of being not able to be passed or traversed.
Think of 'not able to be passed' — 'im-' means not, and 'passable' means able to be passed. This helps you remember that impassableness describes something that cannot be crossed.