Definition

Adverb (Idiomatic Phrase): * In spite of all obstacles; no matter what happens; regardless of any difficulties: This phrase expresses an absolute determination to do something. It means that nothing—no disaster ("hell") or natural barrier ("high water")—will prevent the action from being carried out.

Usage

This phrase is used to emphasize unwavering resolve and commitment. It functions as an adverbial phrase, typically placed at the end of a sentence to modify the main verb. It is often used with future-tense constructions.

Examples

• Adverb (Idiomatic Phrase):
  • I promise I'll be there to help you, come hell or high water.
  • She was determined to finish the marathon, come hell or high water.
  • We will deliver this project on time, come hell or high water.

Advanced Usage

• The phrase can sometimes be placed at the beginning of a sentence for dramatic or literary effect, though this is less common in everyday speech.
  • Come hell or high water, this company will succeed.

Variants and Related Words

• Come what may: A very close synonym with the same meaning of "no matter what happens."
  • I will support you, come what may.

Synonyms

• No matter what
• Regardless
• Unconditionally
• Without fail
• At all costs

Related Idioms

• Through thick and thin: Persisting faithfully through good times and bad times. (This emphasizes loyalty over mere obstacle defiance.)
  • They stayed friends through thick and thin.
• Rain or shine: Used to indicate that an event will happen regardless of the weather; sometimes extended to mean regardless of circumstances.
  • The game will proceed, rain or shine.

Adverb

1. in spite of all obstacles
   • we'll go to Tibet come hell or high water