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

• crystal-gazer
• crystal-gazers
• crystal-gazing
• crystal healing
• crystal indices
• crystalline
• crystalline heaven
• crystalline lens
• crystalline lenses
• crystallines
• crystalline sphere
• crystallinities
• crystallinity
• crystallisable
• crystallisation
• crystallise
• crystallised
• crystallises
• crystallising
• crystallite
• crystallites
• crystallitis
• crystallitises
• crystallizable
• crystallization