soporific

IPA/ˌsɒpəˈrɪfɪk/
IPA/ˌsɑːpəˈrɪfɪk/

soporific — adjective

  • soporificpositive
  • more soporificcomparative
  • most soporificsuperlative

1. making you feel very sleepy or sending you to sleep — especially of a sound, a r

1.adjectiveB2
Definition

making you feel very sleepy or sending you to sleep — especially of a sound, a room temperature, a medicine, or a repetitive activity that gently pushes the mind toward rest.

Example

The steady hum of the train's engine had a soporific effect on Yuki, who dozed off before the first stop.

soporific effect + [emotion/state] on [person]

Grandmother's soporific chamomile tea always put Ananya to sleep within minutes.

soporific [noun] modifies a substance or thing that induces sleep

Common collocations
  • soporific effect
  • soporific atmosphere
  • soporific monotony
  • soporific quality
  • soporific drug
  • soporific rhythm
Synonyms
  • sleep-inducing

    more literal and clinical; used especially of medications

  • hypnotic

    stronger medical term for drugs that produce sleep; also means 'mesmerising'

  • somnolent

    describes a sleepy state rather than something that causes it

Antonyms

Usage Note

Used to describe something that actively causes sleep, not merely occurring while asleep. The subject is typically a sound, a substance, an activity, or an atmosphere.

Common Mistakes

I felt soporific after the long walk.
The long walk had a soporific effect on me.
'soporific' describes the thing causing sleepiness, not the person feeling sleepy.

2. making your mind feel slow, dull, or less alert — not necessarily putting you to

2.adjectiveC1
Definition

making your mind feel slow, dull, or less alert — not necessarily putting you to sleep, but draining your energy to concentrate or think clearly.

Example

Dmitri found the endless spreadsheets soporific; his focus wavered after just twenty minutes.

find + [noun] + soporific — mental dulling

The soporific heat of the tropical afternoon made everyone in the garden shed abandon their work.

Common collocations
  • soporific tone
  • soporific afternoon
  • soporific routine
  • soporific boredom
  • soporific heat
Synonyms
  • lethargic

    describes the resulting state rather than the cause

  • stupefying

    stronger; suggests the mind is nearly numb

  • enervating

    suggests a draining of strength or vitality over time

Antonyms
  • bracing

    fresh and energising, the opposite of dulling

  • lively

    full of mental energy and engagement

Usage Note

This sense is about mental dullness or lethargy rather than actual falling asleep. The cause may be boredom, heat, monotony, or a tedious task. Distinguish from sense 1: sense 2 emphasises sluggish thinking, not necessarily sleep.

Common Mistakes

The soporific medicine stopped the cough.
The soporific medicine made me drowsy.
'soporific' means causing sleep/dullness, not curing anything.

soporific — noun

Word family

  • sopor
    noun
  • soporiferous
    adjective
  • soporifically
    adverb

Synonym discussion

Sense: adjective/1

All four words relate to sleep, but their focus differs. 'Soporific' (from Latin sopor 'deep sleep') describes something that actively causes drowsiness — a soporific lecture, a soporific drug. 'Hypnotic' is stronger: it implies a trance-like, irresistible pull (a hypnotic melody, a hypnotic sleeping pill) and is the clinical term for prescription sleep aids. 'Somnolent' describes being sleepy or drowsy itself, not something that causes sleep: a somnolent patient, a somnolent afternoon. 'Sleep-inducing' is the most literal and is used mostly in medical or parenting contexts ('a sleep-inducing routine for babies'). In everyday use, 'soporific' is the best choice for something that gently makes you want to sleep; use 'hypnotic' when the effect feels powerful or mesmerising.

soporific ↗hypnotic ↗somnolentsleep-inducing

Etymology

LatinFrenchEnglish

From Latin 'sopor' (meaning 'deep sleep'), combined with '-ific' (from Latin 'facere' meaning 'to make'). The word entered English in the 1680s through French 'soporeux'. The noun form 'soporific' (a sleep-inducing substance) appeared a few decades later. The root 'sopor' is related to Sanskrit 'svapiti' (he sleeps) and Old English 'swefan' (to sleep).