inherent (in-her'ent), inborn, natural.
innovation (in'e-va'shun), something new or contrary to custom.
innumerable (i-nu'mer-a-b'l), cannot be numbered.
inscrutable (in-skroo'ta-b'l), not able to be understood.
insidious (in-sid'i-us), sly, deceitful.
insolence (in'so-lens), impudence.
inspire (in-spir'), to fill with hope.
instance (in'stans),
instill (in-stil'), bring to mind,
insulated (in'su-latf ed), separated.