Form opposite adjectives with negative suffixes:

There is no doubt that drugs are ___________ (legal).
It was quite ____________ (possible) for us to drive all the way from Santander to Seville in one day.
He made an __________ (successful) attempt to climb the highest mountain in the area.
The dress she was wearing was quite _________ (appropriate) for the weather.
It was very _________ (polite) of him to shout at his mother in front of his aunt.
It was ____________ (reasonable) of them to say that.
What they said is ___________ (true). We didn’t hit her at all.