Definition

1. Noun:
   • A strong underwater current flowing away from the shore: An undertow is a powerful, often dangerous, current that moves below the surface of the water, pulling seaward after a wave has broken on the beach.
   • A hidden, contrary, or underlying feeling or influence: An undertow can also describe a subtle but strong underlying quality, emotion, or tendency that contradicts or exists beneath a more obvious surface feeling or situation.

Usage Examples

• Noun (Physical Current):
  • Swimmers were warned about the dangerous undertow.
  • The force of the undertow pulled his feet out from under him.
• Noun (Underlying Influence):
  • Despite the cheerful conversation, there was an undertow of sadness in her voice.
  • The political speech had a strong undertow of nationalism.

Advanced Usage

• "to feel the undertow of (something)": to sense a powerful underlying emotion or force.
  • One could feel the undertow of anxiety in the crowded room.
• "to be caught in an undertow": (literal) to be trapped by the underwater current; (figurative) to be overwhelmed by a hidden, powerful force or emotion.
  • Figuratively: He was caught in an undertow of nostalgia.

Variants and Related Words

• Undercurrent (n): A current below the surface; a hidden tendency or feeling. (This is a close synonym for both meanings of "undertow").
• Riptide / Rip current (n): A specific, fast-moving channel of water flowing seaward from the shore. (Note: While often used interchangeably with "undertow" in casual speech, a riptide is technically a different type of current.)

Synonyms

• Undercurrent: (for both meanings)
• Undertone: (especially for the emotional meaning)
• Pull: (for the physical force)
• Underlying force/feeling: (for the figurative meaning)

Phrasal Verbs

(This word is a noun and does not have phrasal verb forms.)

Related Idioms

• "A riptide of emotion": A sudden, powerful surge of feeling. (This idiom uses the related concept of a riptide but captures a similar figurative sense as "undertow").
• "Beneath the surface": Hidden from immediate view. (This phrase describes the state of an undertow, both literal and figurative).

Noun

1. the seaward undercurrent created after waves have broken on the shore
2. an inclination contrary to the strongest or prevailing feeling
   • his account had a poignant undertow of regret