Study the word list: the prefixes il-, im-, ir-

opposite prefixes il-, im-, ir-

 

illegal The download of films can be illegal.
illegible Her handwriting was completely illegible.
immature He is no longer young and immature.
immortal Nobody is immortal.
impossible It’s impossible to hear you.
impatient Some people became impatient when they had to wait.
imperfect Her English is imperfect, but she is learning every day.
irregular Irregular verbs are not difficult to learn.
irrelevant His opinion on the movie is irrelevant because he did not watch it.
irresponsible It is irresponsible to drive so fast in a town.
inaccurate The reporting on the incident is inaccurate.
inadequate The people work hard, but their pay is inadequate