: without doubt : in a way that is certain or clear
The new model is definitely an improvement.
The party will definitely be next week.
The room is definitely not ready.
"Will you come over on Saturday?" "Definitely!" [=yes]
Cite this Entry
“Definitely.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/definitely. Accessed 6 May. 2026.
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