What does "low spirits" mean?

A state of despondence or melancholy.

Low spirits

Common synonyms include: blank despondency, blues, death wish, dejectedness, dejection, depression.

noun

noun ·Rare ·Advanced level

Noun

1
A state of despondence or melancholy. plural, plural-only
"After a week the search party was justifiably in low spirits."
2
a state of mild depression wordnet

"After a week the search party was justifiably in low spirits."