Forming opposites by prefixes - ir & il

1.The astronaut walked on the irregular surface of the moon.

2.Your answer to my question is irrelevant.

3.Losing a leg is an irreparable injury.

4.I cannot refuse his offer. It is irresistible.

5.It is irresponsible to leave a child alone at home.

6.The king's illegitimate son cannot inherit the throne.(born to parents who are not married)

7.Your handwriting is illegible.(hard to read)

8.It is illegal to drive without a light after dark.(against the law)

9.Someone who is illiterate does not know how to read or write.

10.It is clearly illogical to maintain such a theory.