Upper-Intermediate (B2)
IPA: /ɪnˈdjuːbɪtəblɪ/
KK: /ɪnˈduːbɪtəblɪ/
Definition
In a way that is certain and leaves no doubt; definitely true.
Example
She is indubitably the best candidate for the job.
Conversation

Do you think we should go to that new restaurant tonight?

I’ve heard great things about it, so indubitably we should!

Awesome! I can't wait to try their famous pasta.

I’ve been craving it for ages, so it’s a perfect choice.
Synonyms & Antonyms
Synonyms
certainly
undoubtedly
definitely
Antonyms
doubtfully
questionably
uncertainly
Root Explanation
Indubitably is formed from "in-" (meaning not) and "dubitabilis" (from Latin, meaning able to be doubted). The word means not able to be doubted, or certainly true.
Memory Tip
Think of 'not' ('in-') being able to 'doubt' ('dubitabilis') something — that's why indubitably means something is certainly true.
Visually Confused Words
undubitably
dubitably
indictably
undubitable
undoubtably
iniquitably
inequitably
indomitably