nonbolded

As adjectives the difference between nonbolded and nonbonded

is that nonbolded is (typography) not bolded while nonbonded is (chemistry) describing electron pairs that take no part in bonding.

As adjectives the difference between bold and nonbolded

is that bold is courageous, daring while nonbolded is (typography) not bolded.

As a noun bold

is (obsolete) a dwelling; habitation; building.

As a verb bold

is to make (a font or some text) bold.