What part of speech is the word doldrums?

"Doldrums" can be a few different parts of speech depending on how it's used:

* Noun: This is the most common usage. It refers to a state of low spirits, inactivity, or depression.

* Example: "After the party, everyone felt the doldrums."

* Adjective: This usage is less common but still valid. It means sluggish or lacking in energy.

* Example: "The doldrums of winter made it hard to get motivated."

* Plural noun: In nautical terms, "doldrums" refers to a region near the equator where there is little or no wind. This usage is very specific and not often seen in general conversation.

So, without context, it's most likely a noun.