1. (mathematics and logic) if and only if

Encyclopedia: Iff

• inadequately
• inadequateness
• inadmissibility
• inadmissible
• inadvertence
• inadvertency
• inadvertent
• inadvertently
• inadvisability
• inadvisable
• inadvisably
• inaesthetic
• inalienability
• inalienable
• inalienably
• inalterable
• inamorata
• inamorato
• inane
• inanely
• inanimate
• inanimately
• inanimateness
• inanition
• inanity