Synonyms for Spring fever:

• adj.

  •lackadaisical (adjective)
  • passive,
  • inattentive,
  • sentimental,
  • enervated,
  • spiritless,
  • laid-back,
  • inert,
  • abstracted,
  • dreamy,
  • daydreaming,
  • apathetic,
  • slothful,
  • languid,
  • lazy,
  • disinterested,
  • incurious,
  • languorous,
  • romantic,
  • listless,
  • moony,
  • lethargic,
  • limp,
  • Languishing,
  • halfhearted,
  • dull,
  • idle,
  • unconcerned.
  •Other relevant words: (adjective)
  • energyless,
  • Half-hearted,
  • lackadaisical,
  • laid back,
  • indolent.

• n.

  •Other relevant words: (noun)
  • vernal,
  • seasonally,
  • seasonality.

• Other synonyms:

  •
  • kick,
  • delight,
  • ecstasy,
  • joie de vivre,
  • excitement,
  • pleasure,
  • enthusiasm,
  • wonder,
  • anticipation.
  •languor
  • lassitude.
  •Other relevant words (noun):
  • Inexertion,
  • vagrancy,
  • remissness,
  • inertia,
  • laziness,
  • indolence,
  • slowness,
  • Faineancy,
  • shiftlessness,
  • Do-nothingness,
  • dilatoriness,
  • ergophobia,
  • laggardness,
  • sloth,
  • slothfulness.

Antonyms for Spring fever:

• adj.

  • lackadaisical
    interested, lively, active, energetic, caring, hard-working, enthusiastic, careful.