An adverb of certainty provides information about the level of certainty or confidence regarding an action, event, or statement.

Here you have a list with adverbs of certainty examples:

Adverbs Of Certainty Examples

  • Definitely
  • Certainly
  • Surely
  • Absolutely
  • Positively
  • Undoubtedly
  • Indisputably
  • Assuredly
  • Clearly
  • Obviously
  • Unquestionably
  • Truly
  • Really
  • Absolutely
  • Naturally
  • Likely
  • Doubtlessly
  • Certainly
  • For sure
  • Irrefutably
  • Inevitably
  • Incontestably
  • Evidently
  • Decidedly

Some examples of sentences using adverbs of certainty

Definitely:

  • She will definitely attend the conference next month; it’s an important event.
  • The answer to the math problem is definitely correct; I double-checked it.

Certainly:

  • You can certainly count on her to help you with your project.
  • Certainly, I can assist you with any questions you have.

Surely:

  • She will surely excel in her new role with her strong work ethic.
  • Surely, you remember our last vacation; it was unforgettable.

Absolutely:

  • The view from the mountaintop is absolutely breathtaking.
  • It’s absolutely essential to follow safety procedures in the lab.

Positively:

  • He was positively thrilled with the surprise party his friends organized.
  • The experiment’s results are positively groundbreaking.

Undoubtedly:

  • His dedication to the cause is undoubtedly admirable.
  • The team’s hard work will undoubtedly lead to success.

Indisputably:

  • The evidence presented in court is indisputably convincing.
  • Her talent as a musician is indisputably recognized by critics.

Assuredly:

  • The project’s success is assuredly due to the team’s efforts.
  • Your skills will assuredly be an asset to the company.

Clearly:

  • The instructions are clearly outlined in the manual.
  • Clearly, there is room for improvement in this process.

Obviously:

  • Obviously, the weather is ideal for an outdoor picnic.
  • His dedication to his craft is obviously reflected in his work.

Unquestionably:

  • Her leadership qualities are unquestionably evident in her decisions.
  • The benefits of exercise are unquestionably supported by scientific research.

Truly:

  • She truly believes in the power of positive thinking.
  • It’s truly inspiring to see the community come together for a good cause.

Really:

  • The concert was really amazing, and the band played their hearts out.
  • You’ve really improved your cooking skills; this meal is delicious.

Naturally:

  • Naturally, flowers bloom in the springtime.
  • It’s naturally expected for children to be curious and ask questions.

Likely:

  • It’s likely that we’ll experience heavy rain tomorrow, so carry an umbrella.
  • He’s likely to succeed in his career due to his determination.

Doubtlessly:

  • She will doubtlessly complete the marathon; her training has been rigorous.
  • The outcome of the experiment is doubtlessly influenced by various factors.

For sure:

  • You can count on my support, for sure.
  • For sure, he’s one of the most reliable team members.

Irrefutably:

  • The scientific evidence irrefutably supports the theory of climate change.
  • His dedication to his craft is irrefutably evident in his work.

Inevitably:

  • Change is inevitably a part of life; we must adapt.
  • The passage of time inevitably brings about new challenges.

Incontestably:

  • Her artwork is incontestably exceptional; it’s received numerous awards.
  • The fact that she won the competition is incontestably true.

Evidently:

  • Evidently, the new product design is more user-friendly.
  • The trail of footprints evidently led to the hidden treasure.

Decidedly:

  • His approach to problem-solving is decidedly unique and effective.
  • The team’s performance has improved decidedly since their last training session.