Word forms: undertows
1. countable noun If there is an undertow of a feeling, that feeling exists in such a weak form that you are hardly aware of it, but it influences the way you think or behave. ⇒ The existence of an emotional undertow is an aspect of all politics. [+ of] ⇒ ...an undertow of sadness. 2. countable noun
An undertow is a strong current of water that is moving below the surface current and in a different direction to it. ⇒ Dangerous undertows make swimming unsafe along most of the coastline.
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