Fallout impassable Synonyms

We can't find synonyms for the phrase "Fallout impassable", but we have synonyms for terms, you can combine them.

FI abbreviation

FI is an abbreviation for Fallout Impassable

What does FI stand for?

FI stands for "Fallout Impassable"

Definitions for Fallout

(noun) the radioactive particles that settle to the ground after a nuclear explosion
(noun) any adverse and unwanted secondary effect

Definitions for Impassable

(adjective) impossible to get through or into
(adjective) incapable of being passed