Definition

Adverb: * Without doubt; certainly: Used to emphasize that something is definitely true or will definitely happen.

Usage

• Position: Typically placed before the main verb, after a modal verb (like "will" or "can"), or at the beginning of a sentence for emphasis.
• Function: Adds strong emphasis and certainty to a statement. It is a formal synonym for "definitely" or "certainly."

Examples

• Before the main verb:
  • She will doubtlessly succeed in her new role.
  • This discovery doubtlessly changes our understanding of history.
• After a modal verb:
  • He can doubtlessly finish the project on time.
• At the beginning of a sentence (for emphasis):
  • Doubtlessly, the team worked very hard to achieve this result.

Advanced Usage

• "Doubtlessly" is often used in more formal, written, or academic contexts to express a high degree of conviction. In everyday speech, "undoubtedly," "definitely," or "certainly" are more common.

Variants and Related Words

• Undoubtedly (adv.): A very close synonym, often used interchangeably with "doubtlessly."
• Doubtless (adv.): Can function as an adverb with the same meaning, though it is sometimes considered slightly less formal than "doubtlessly."
  • He will doubtless agree with the proposal.

Synonyms

• Certainly
• Definitely
• Unquestionably
• Indisputably
• Assuredly

Antonyms

• Possibly
• Perhaps
• Maybe
• Doubtfully

Adverb

1. without doubt; certainly
   • it's undoubtedly very beautiful