Answer: leakier

AnswerCrossword Clue
LEAKIER

Less likely to float

LEAKIER

Less likely to stay up

LEAKIER

Less seaworthy

LEAKIER
Dripping more
LEAKIER
Having more holes.
LEAKIERMore unreliable, as a boat
LEAKIERLess secure
LEAKIERMore like a sieve
LEAKIERMore in need of a plug
LEAKIERLess likely to stay inflated
LEAKIERMore likely to founder
LEAKIERLess watertight