ir-
He became more ________ as his fever got worse. (lacking mental clarity, not rational)
irrational
I prefer reading n_______ books because I love learning facts about different topics.
nonfiction
It is ______ to drive without a license. (not legal)
illegal
It is _______ to interrupt someone when they are talking.
impolite
The news report contained ________ information about the number of cars involved in the accident according to an eyewitness. (not accurate)
inaccurate
It is difficult to work different shifts at the hospital because it results in _______ sleep habits. (not regular)
irregular
When you eat too much junk food, you are eating ______ foods.
unhealthy
Those reasons you gave are completely ________; they make no sense at all.
illogical
It's an _______ solution because it has some small flaws or mistakes and isn't perfect.
imperfect
We took an ________ route to my grandparents because we wanted to enjoy the scenery. (not direct)
indirect
My little brother is so _________ because he never does the chores my parents ask him to do.
irresponsible.
My old bed was so lumpy and _________ that I couldn't sleep in it!
uncomfortable.
It is very sad that many homeless people are ______ and can't read.
illiterate
Sometimes my big brother acts so _________ when he acts like a baby when he doesn't get his way.
immature
The delivery system was very _________ and all packages were delivered late or damaged. (not efficient)
inefficient
His comment was completely ________ because it had nothing to do with the topic we were discussing. (not relevant)
irrelevant
My aunt is u_______ as to whether she can come visit during the holidays.
uncertain.
Many doctors have ______ handwriting that only they can read.
illegible
It is important for jurors to be ________ when trying to reach a verdict. (not allowing opinions to affect their judgement)
impartial
Some people have an ________ to do math in their head. (not able)
inability
This machine is __________ and I can't repair it.
irreparable
The boy was n________ and couldn't explain what had happened to him. (not able to speak)
nonverbal
Sometimes the author and ________ of a book are the same person.
illustrator
The doctor emphasized the importance of remaining _______ so my broken leg would heal more quickly. (to not move)
immobile
My school is _________ about the rules regarding no cellphones in school. (not flexible)
inflexible