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Is it OK to say rest assured?

What does “rest assured” mean?

Rest assured is a phrase used to tell someone that they can relax and stop worrying, because the thing they are concerned about will be taken care of. It’s a reassuring expression that conveys confidence and assurance.

Some examples of using “rest assured” in a sentence:

  • “Rest assured, your package will arrive by tomorrow morning.”
  • “Rest assured that I will take care of all the travel arrangements for our trip.”
  • “You can rest assured that we will find a solution to this problem.”

So in essence, saying “rest assured” is letting someone know they can feel at ease and have confidence in you because you will handle or take care of whatever is causing them uncertainty or doubt.

Is it polite to say “rest assured”?

Yes, in most cases it is perfectly polite and appropriate to use the phrase “rest assured.” Here are some reasons why:

  • It shows care and consideration for the other person’s feelings. You are letting them know you understand their worries and aim to alleviate them.
  • It conveys professionalism and reliability. “Rest assured” demonstrates you take your duties seriously and will deliver on your promises.
  • It is a respectful way to ask for trust. “Rest assured” expresses confidence without demanding blind faith from the other party.
  • It can calm tensions and anxieties. Hearing you say “rest assured” can put people at ease during stressful situations.

However, tone and context also matter. You want to avoid sounding flippant, arrogant, or overly familiar when using this phrase. As long as you communicate “rest assured” sincerely, it comes across as polite, professional reassurance.

Is there a situation where “rest assured” would be impolite or inappropriate?

While “rest assured” is generally appropriate, there are a few scenarios where it could come across as impolite or inappropriate:

  • Being overly casual with strangers or in formal settings. For example, saying “rest assured” to a client you just met may feel too informal.
  • When you lack the authority, ability, or evidence to provide reassurance. Don’t make promises you cannot keep.
  • If someone expresses strong emotions like grief, anger, or fear. Sometimes people need compassion more than assurances.
  • When talking to friends/family about minor concerns. Using this phrase could feel patronizing if their worries don’t warrant it.
  • If you say it in a dismissive, disinterested, or insincere tone. The phrase rings hollow without gentleness and empathy.

The essence is understanding when casual confidence provides welcome reassurance versus when a more thoughtful, sensitive approach is required. Read the context and emotional subtext before telling someone to “rest assured.”

What tone should be used when saying “rest assured”?

The ideal tone to use when saying “rest assured” is one that conveys confidence, sincerity, and warmth. Here are some tips:

  • Be confident but not arrogant. You want to sound self-assured but not overbearing.
  • Be warm but professional. A friendly, compassionate tone is ideal, but avoid being too casual in formal situations.
  • Make eye contact and smile. Doing so adds nonverbal reassurance.
  • Speak slowly and clearly. This communicates the message is important and you are thinking carefully.
  • Be specific when possible. Rather than a generic “rest assured,” say why they can feel at ease by giving details.
  • Anticipate concerns. Addressing potential issues adds credibility.
  • Listen attentively. Making space for them to respond builds trust.

The underlying aim is to sound caring yet capable. You want to convey that you empathize with their situation and are reliable enough to deliver peace of mind. With the right tone, saying “rest assured” can turn a moment of worry into an opportunity to build trust.


In most situations, saying “rest assured” is a polite, professional way to ease someone’s mind and demonstrate you can be depended on. The phrase conveys caring, competence, and consideration when delivered sincerely. However, restraint is wise in very formal/informal settings or when emotions run high. Adapt your tone to show confidence with a human touch, and “rest assured” can work conversational magic. Use this reassuring phrase to build trust and banish anxieties.