quinine
dissatisfied, disappointed
1st 2nd 3rd 4th
The word with the 3rd, 4th, 6th, and 7th letters being the same is "bookkeeper."
Insinew To strengthen, as with sinews; to invigorate.
concerning
attach, attack
letters
Bee, ill, all, tee, odd, add.
SASSY or SORRY
this
For a six-letter word to be a palindrome, the 3rd and 4th letters would have to be the same.
daub - to cover or coat with soft, adhesive matter, as plaster or mud