I'm looking for an adjective to describe an effect which is the opposite of soporific:

The insomniac's bedroom had a [???] effect: every time she went to bed, her tiredness disappeared and all she wanted was to get back up again.

Any ideas?

  • Would asoporific work? Commented Jul 15, 2016 at 23:56
  • @Pureferret Does that mean "opposite of soporific" though, or just "not soporific"? Commented Jul 15, 2016 at 23:56
  • had a caffeinating effect...
    – Jim
    Commented Jul 16, 2016 at 0:05
  • 2
    @Drew: In context, perhaps had a stimulant effect is more likely. Maybe not more likely to the world at large, but it sounds more appropriate to me. Commented Jul 16, 2016 at 0:09
  • 1
    "... by the end of the fourteenth century English writers already possessed a range of techniques which could introduce variety and counter soporific tendencies, ..." books.google.co.in/…
    – Kris
    Commented Dec 15, 2017 at 12:38

3 Answers 3


It's not exactly the same, since it has meanings other than just non-drowsy, but you can probably use:

invigorating: adj. making one feel strong, healthy, and full of energy.

When talking about a soporific in terms of the noun, a drug that makes you drowsy, the opposite of that would be a stimulant, so you may also be able to use stimulating as an antonym. To me, though, that often has too much of an over-active ot hyper-active connotation to it.

  • This looks perfect. I'll accept it unless anyone comes up with something better. Commented Jul 16, 2016 at 0:06



adjective--1. rousing*; quickening

*(rousing meaning to bring out of a state of sleep, unconsciousness, inactivity)


adjective--Rousing from sleep, in a natural or a figurative sense; rousing into activity; exciting; as, the awakening city; an awakening discourse; the awakening dawn.


Collins dictionary

adjective--having the ability or tendency to restore strength



adjective--having a renewing effect on the state of the body or mind



adjective--having a renewing effect on the state of the body or mind


Collins dictionary

adjective--that energizes someone

  • 1
    i would actually say rousing is a better choice then awakening (I wouldn't have expected that to even be an adjective)
    – KutuluMike
    Commented Jul 16, 2016 at 0:08
  • @KutuluMike ~ the only problem with rousing is that it can also mean exciting and is usually used to describe experiences and other abstract ideas.
    – user180089
    Commented Jul 16, 2016 at 0:15

This is quite awhile ago, I see; but my advice is that your use of the "bedroom's effect" should be described as lacking the soporific effect that it is supposed to have.

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