Answer: solely

AnswerCrossword Clue
SOLELYExclusively
SOLELYTo the exclusion of all else
SOLELYOne way to be responsible
SOLELYOnly
SOLELYAlone
SOLELYJust
SOLELYWithout allies
SOLELYAlone.
SOLELYUnaided
SOLELY100%
SOLELYWithout another
solelysingly (without the company of others)
solelywithout another singly went solely on her way
solelythe exclusion of all else done solely for money