WordRel.com

• exceedingly harmful

  synonym	banefulperniciouspestilent
  derivation	deadliness
  similar	noxious

• extremely poisonous or injurious; producing venom

  synonym	venomousvirulent
  derivation	deadliness
  similar	toxic

• involving loss of divine grace or spiritual death

  synonym	mortal
  derivation	deadliness
  domain topic	divinitytheology
  similar	unpardonable

• (of a disease) having a rapid course and violent effect

  derivation	deadliness
  similar	virulent

• causing or capable of causing death

  synonym	deathlymortal
  derivation	deadliness
  similar	fatal

• of an instrument of certain death

  synonym	lethal
  derivation	deadliness
  similar	fatal

• (used as intensives) excessively

  synonym	deucedlydevilishlyinsanelymadly
  exemplifies	intensifierintensive

• as if dead

  synonym	lifelessly
  pertainym	dead