hypnotic
hyp-not-ic
noun
A drug or agent used to induce sleep or a trance.
"He was given a strong hypnotic."
adjective
Having a powerful, captivating quality that resembles a trance or hypnosis.
"Her voice had a hypnotic quality."
Thesaurus
Synonyms: mesmeric, spellbinding, mesmerizing, attractive, soporific