hypnotic
[adjective]
Synonyms: mesmeric, mesmerizing, sleep-inducing, soothing, soporific, spellbinding

[TahlilGaran] English Synonym Dictionary ▲

I. hyp‧not‧ic¹ /hɪpˈnɒtɪk $ -ˈnɑː-/ adjective
[Date: 1600-1700; Language: French; Origin: hypnotique, from Greek, from hypnos 'sleep']

1. making you feel tired or unable to pay attention to anything else, especially because of a regularly repeated sound or movement:
His voice had a smooth hypnotic effect.
the hypnotic beat of the drum

2. [only before noun] relating to hypnosis:
a hypnotic trance
—hypnotically /-kli/ adverb

[TahlilGaran] Dictionary of Contemporary English ▲

II. hypnotic² noun [countable] technical
a drug that helps you to sleep Synonym : sleeping pill

[TahlilGaran] Dictionary of Contemporary English ▲