DIS-
Someone who doesn't tell the truth
DISHONEST
Against the law
ILLEGAL
Someone who is rude
IMPOLITE
Something which is not 100% correct
INACCURATE
Someone who doesn't care about the negative consequences of their actions
IRRESPONSIBLE
A person who is injured or incapacitated
DISABLED
Something irrational, that doesn't make sense
ILLOGICAL
Something that is not 100% because it has some small flaws or mistakes
IMPERFECT
Not straight, or not expressed clearly
INDIRECT
Something that you love uncontrollably, like chocolate, ice cream or someone you love
IRRESISTIBLE
Unhappy about something
DISSATISFIED
A person who cannot read or write
ILLITERATE
An adult who acts like a child
IMMATURE
Not specific (like the articles 'a' and 'an')
INDEFINITE
Something not normal, like the verb "be"
IRREGULAR
Somebody who doesn't follow the rules
DISOBEDIENT
Handwriting that cannot be read
ILLEGIBLE
Something that is possible but very unlikely (like winning the lottery)
IMPROBABLE
Having no end; limitless
INFINITE
Something that cannot be changed to its original state
IRREVERSIBLE