infidel /inˈfi-del or -dl/

1. Someone who rejects a religion, esp Christianity or Islam
2. Loosely, someone who disbelieves in a particular theory, etc

1. Unbelieving
2. Sceptical
3. Disbelieving a religion

infidelˈity noun

1. Lack of faith or belief
2. Disbelief in religion
3. Unfaithfulness, esp in marriage
4. An instance of this
5. Treachery

• Noachic
• Noah's ark
• no amount of
• nob
• no-ball
• no-balled
• no-balling
• no-balls
• nobbier
• nobbiest
• nobbily
• nobbiness
• nobbinesses
• nobble
• nobbled
• nobbler
• nobblers
• nobbles
• nobbling
• nobbut
• nobby
• Nobelist
• nobelium
• nobeliums
• Nobel laureate