As a proper noun girl

is (astronomy) a chinese constellation located near aquarius, one of the 28 lunar mansions and part of the black turtle.

As a noun postgirl is

(rare) a girl who delivers the post; a young postwoman.

In lang=en terms the difference between postwoman and postgirl

is that postwoman is a female letter carrier, a woman who delivers mail while postgirl is a girl who delivers the post; a young postwoman.

As a noun breach

is a gap or opening made by breaking or battering, as in a wall, fortification or levee; the space between the parts of a solid body rent by violence; a break; a rupture; a fissure.

As a verb breach

is to make a breach in.

As an adjective unbreached is

not breached; intact.

As adjectives the difference between intact and unbreached

is that intact is untouched, especially by anything that harms, defiles, or the like; uninjured; whole; undefiled; left complete or entire; not damaged while unbreached is not breached; intact.

As a noun breach

is a gap or opening made by breaking or battering, as in a wall, fortification or levee; the space between the parts of a solid body rent by violence; a break; a rupture; a fissure.

As a verb breach

is to make a breach in.

As an adjective breachable is

that can be breached; vulnerable.

As adjectives the difference between vulnerable and breachable

is that vulnerable is vulnerable while breachable is that can be breached; vulnerable.

As a verb encounter

is to meet (someone) or find (something) unexpectedly.

As a noun encounter

is an unplanned or unexpected meeting.

As an adjective unencountered is

not encountered.

As an adjective suppletive

is .

As an adverb suppletively is

in a suppletive way.

As a verb legalize

is (american spelling).

As an adjective unlegalized is

not legalized.

Unlegalized is a alternative form of unlegalised.

As adjectives the difference between unlegalised and unlegalized

is that unlegalised is an alternative spelling of unlegalized while unlegalized is not legalized.