untrust

As adjectives the difference between external and untrust

is that external is outside of something; on the exterior while untrust is (lb) faithless; distrustful.

As a noun untrust is

lack or absence of trust; mistrust; distrust.

As nouns the difference between trust and untrust

is that trust is confidence in or reliance on some person or quality while untrust is lack or absence of trust; mistrust; distrust.

As adjectives the difference between trust and untrust

is that trust is secure, safe while untrust is faithless; distrustful.

As a verb trust

is to place confidence in; to rely on, to confide, or repose faith, in.