be in high/low spirits

be in high spirits

To be happy and upbeat, often due to some success or positive occurrence. Ellen's been in high spirits ever since she found out she got the lead in the school play.
See also: high, spirit

be in low spirits

To be unhappy or sad, often due to being discouraged. Ellen's been in low spirits ever since she found out she didn't get the lead in the school play.
See also: low, spirit
Farlex Dictionary of Idioms.

be in high/low ˈspirits

(also in good/poor ˈspirits) be happy and cheerful/sad and miserable: John was in rather low spirits all evening. ▶ ˌhigh-ˈspirited, ˌlow-ˈspirited adj.: high-spirited children
See also: high, low, spirit
Farlex Partner Idioms Dictionary
See also:
  • be in high spirits
  • be in low spirits
  • a piece of the action
  • a piece/slice of the action
  • appear to
  • a change of heart
  • bit of the action
  • a bit of the action
  • a mystery to (one)
  • be as brown as a berry