id

idiosyncratic (adj.) peculiar to one person; highly individualized (I know you had trouble with the last test, but because your mistakes were highly idiosyncratic, I’m going to deny your request that the class be given a new test.)

idolatrous (adj.) excessively worshipping one object or person (Xena’s idolatrous fawning over the band—following them on tour, starting their fan club, filming their documentary—is really beginning to get on my nerves.)