unsafe

As adjectives the difference between unsafe and plain

is that unsafe is not safe; dangerous while plain is .

As an adverb plain is

(colloquial) simply.

As a noun plain is

(rare|poetic) a lamentation or plain can be an expanse of land with relatively low relief.

As a verb plain is

to lament, bewail or plain can be (obsolete|transitive) to plane or level; to make plain or even on the surface.

As adjectives the difference between unsafe and undefined

is that unsafe is not safe; dangerous while undefined is lacking a definition or value.

As an adjective unsafe

is not safe; dangerous.

As a noun null is

zero, nil; the cardinal number before einn.

Uncertain is a related term of unsafe.

As adjectives the difference between uncertain and unsafe

is that uncertain is not certain; unsure while unsafe is not safe; dangerous.

As adjectives the difference between unsafe and uncomfy

is that unsafe is not safe; dangerous while uncomfy is (informal) uncomfortable.

As an adjective unsafe

is not safe; dangerous.

As a noun guilt is

responsibility for wrongdoing.

As a verb guilt is

(obsolete) to commit offenses; act criminally.

As adjectives the difference between unfit and unsafe

is that unfit is not fit; not having the correct requirements while unsafe is not safe; dangerous.

As a verb unfit

is to make unfit; to render unsuitable, spoil, disqualify.

As adjectives the difference between flawed and unsafe

is that flawed is having a flaw while unsafe is not safe; dangerous.

As adjectives the difference between unsafe and harmful

is that unsafe is not safe; dangerous while harmful is of a kind likely to be damaging; injurious.

As an adjective unsafe

is not safe; dangerous.

As a noun danger is

(obsolete) ability to harm; someone's dominion or power to harm or penalise see in one's danger, below.

As a verb danger is

(obsolete) to claim liability.