Adjectives that start with I to describe a person

Please find below a list of I adjectives which might be used to describe a person.

icky
idealistic
idiotic
idle
ill
illegitimate
illicit
illiterate
illogical
illusive
illustrious
imaginary

imaginative
immaculate
immature
immense
immodest
immoral
impartial
impassioned
impassive
impatient
impenetrable
imperfect
impersonal
imperturbable
impervious
impetuous
impious
impolite
important
impotent
impoverished
impressive
improper
impulsive
inactive
inadequate
inane
inarticulate
inattentive
incoherent
incompetent
incorrigible
incorruptible
incredible
incurable
indebted
indecent
indecipherable
indecisive
independent
indigenous
indiscreet
indiscriminate
indiscriminating
individualistic
indomitable
industrious
ineffective
ineffectual
inefficient
inept
inexhaustible
inexperienced
infamous
infantile
infertile
inflexible
influential
informal
ingenious
inhumane
injured
innocent
innovative
inquisitive
insane
insatiable
inscrutable
insecure
insensitive
inside
insidious
insignificant
insincere
insistent
inspirational
inspiring
insulting
intellectual
intelligent
intense
interesting
intolerant
intractable
intriguing
introspective
inventive
invincible
invisible
irate
irrational
irresponsible
irreverent
irritable
irritating
itchy

There are many more lists of adjectives on this website. For more adjectives starting in I, see this post containing a large number of adjectives beginning with the letter I, some of which can be used for describing people.