experienced
Inexperienced
Insufficient
sufficient
fortunate
Unfortunate
resistible
Irresistible
perfect
Imperfect
precise
Imprecise
certain
Uncertain
intelligent
Unintelligent
legal
Illegal
convenient
Inconvenient
necessary
Unnecessary
mature
Immature
conscious
Unconscious
dependent
Independent
practical
Impractical
appropriate
Inappropriate