Answer: deadlier

AnswerCrossword Clue
DEADLIER"... Than the Male"
DEADLIERMore venemous
DEADLIERMore unbearable: Colloq.
deadlierDEADLY, fatal (capable of causing death)
deadlierming to kill or destroy implacable a deadly enemy
deadliererring a deadly marksman
deadlierlikely to cause or capable of producing death deadly poison