Synonyms for Lethal injection:

• n.

  •execution (noun)
  • punishment,
  • Guillotining,
  • strangling,
  • beheading,
  • hanging,
  • HIT,
  • shooting.
  •killing (noun)
  • execution.

• Other synonyms:

  •
  • death row,
  • electric chair,
  • death warrant,
  • death sentence,
  • execute,
  • behead,
  • the death penalty,
  • the chair,
  • capital punishment,
  • crucifixion.

Antonyms for Lethal injection:

• n.

  • execution
    ignorance, Abandoning, neglect, disregard, failure, Forgetting, leaving.