Add one letter to each word below - anywhere in the word - so that each numbered pair becomes two words of opposite meaning. For example, adding P and L to PLUM and SENDER would result in PLUMP and SLENDER.
Beginning with the word "in," add one letter from the given pool to create a new word until you get a seven-letter word meaning "being in a state of suppressed agitation, worry, or resentment."
Pool: T G E S W
1) IN 2) 3) 4) 5) 6)