Synonyms for
Certainly
Definition
without doubt; certainly; definitely
Synonyms & similar words
Synonyms by register
Informal
Antonyms
Common collocations
- certainly true
- certainly not
- certainly possible
- certainly the case
- certainly will
- certainly be
- certainly seems
Word family
Usage note
Certainly is an adverb used to express certainty or to give a confident answer. It is generally suitable for most registers, though very formal contexts might prefer 'undoubtedly' or 'assuredly'.
Example sentences
- She certainly has a beautiful voice.
- I will certainly be there for your birthday party.
- The sun will certainly rise tomorrow morning.
- He certainly deserves a promotion.
- It is certainly going to be a cold winter.
Quotes
Certainly, travel is more than the seeing of sights; it is a change that goes on, deep and permanent, in the ideas of living. - Mary Ritter Beard
You certainly are a great help. - Dorothy L. Sayers
I certainly do not act the part of a president easily. - William Howard Taft