-in, -un, -il, -im
She was (happy) to learn the news.
She was unhappy to learn the news.
The smell of fried bacon and eggs was (resistible).
The smell of fried bacon and eggs was irresistible.
How many English (regular) verbs do you know?
How many English irregular verbs do you know?
More than half of the population still stays (literate) on the continent of Africa.
More than half of the population still stays illiterate on the continent of Africa.
Despite the fact that the film was unusual it was rather (interesting).
Despite the fact that the film was unusual it was rather uninteresting.
It was (possible) for him to forgive her.
It was impossible for him to forgive her.
Usually children are so (patient).
Usually children are so impatient .
Smoking is (healthy) habit.
Smoking is unhealthy habit.
His (active) style of life puts me off.
His inactive style of life puts me off.
The actions, directed at saving the company from collapse, were (popular).
The actions, directed at saving the company from collapse, were unpopular .
The truth is he's so (obedient) he can't go to school anymore.
The truth is he's so disobedient he can't go to school anymore.
We sensed that he was (loyal) and would eventually turn on us.
We sensed that he was disloyal and would eventually turn on us.
I would like to take part in expeditions to (accessible) areas of our planet.
I would like to take part in expeditions to inaccessible areas of our planet.
What a pity! All his endeavors were futile and (successful).
What a pity! All his endeavors were futile and unsuccessful.
It was (mature) of her to do that.
It was immature of her to do that.