As adjectives the difference between unrugged and unmugged
is that unrugged is not rugged while unmugged is not having been mugged.
As a verb unrugged
is past tense of unrug.
unrugged
English
Etymology 1
Adjective
(-)
Not rugged
Etymology 2
Adjective
(-)
Not rugged, without a rug
Verb
(head)
(unrug) unmugged
English
Adjective
(-)
Not having been mugged.