1. a subdued emotional quality underlying an utterance; implicit meaning

Similar word(s): undertone

Definition categories: thought, meaning, substance

2. a current below the surface of a fluid

Similar word(s): undertide

Definition categories: event, current, stream

Sentences with undercurrent as a noun:

- The meeting was pervaded with an undercurrent of dread, as the managers tried not to admit firings were looming.