size

Question 1

immense

Answer 1

extremely large in size or degree:

immense wealth/value
They spent an immense amount of time getting the engine into perfect condition.

Question 2

excessive

Answer 2

too much / going beyond the usual, necessary, or proper limit or degree;
characterized by excess:

Any more pudding would simply be excessive.

Question 3

outright

Answer 3

completely or immediately

obvious, downright, arrant

The driver and all there passengers were killed outright.