3 adjectives to describe harder

" "I'm a little hard of hearing, now and agin.

I know but few that take such a delight in the brave little 'die-hards' as Mr. Pigott, and he may well feel proud of the lot he has got together at great trouble and expense.

The young man gazed for an instant hard at Hilda, with a peculiar expression, and passed on.

3 adjectives to describe  harder