iconoclastic -- unorthodox; against traditional established views
inchoate -- imperfectly formed ("An inchoate idea")
indiscretions -- petty misdeed
indomitable
Ineffable -- cannot be described
infallible
infraction -- a crime less serious than a felony
ingratiating -- (adj) trying to gain favour through deliberate means
innocuous
insignia -- badge
insolvency -- lack of financial resources
impunity -- exempted from punishment
Ides - the 15th day of Mar, May, Jul or Oct or the 13th of any other month
interred -- placed in grave