undoubtedly — without doubt; certainly; definitely
Part of speech: ADVERB
Definition: without doubt; certainly; definitely
Pronunciation (IPA): /ʌnˈdaʊtɪdli/
Example Sentences
- My cat is undoubtedly plotting world domination while pretending to sleep.
- This homework will undoubtedly take me all night to finish.
- Pizza is undoubtedly one of humanity's greatest inventions.
undoubtedly
ADVERB[/ʌnˈdaʊtɪdli/]
without doubt; certainly; definitely

She undoubtedly deserved the gold medal after her outstanding performance.

The evidence undoubtedly proved that the scientist was correct. (🚫 No Doubt + ✅ Certainly → Undoubtedly)

The crowd loudly cheered as the champion proudly lifted the trophy, undoubtedly the best player.
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🎤Pronunciation
🌳Etymology
Origin
From the prefix 'un-' (not) combined with 'doubtedly', which derives from the Middle English and Old French 'doute' meaning 'to doubt', ultimately from Latin 'dubitare'. The adverbial suffix '-edly' converts the adjective into an adverb.
Breakdown
un- (not) + doubt (from Latin dubitare, to hesitate) + -ed (past participle/adjective marker) + -ly (adverb suffix) = undoubtedly
🎵Rhyme
🔗Collocations
📝Examples
“My cat is undoubtedly plotting world domination while pretending to sleep.”
“This homework will undoubtedly take me all night to finish.”
“Pizza is undoubtedly one of humanity's greatest inventions.”
“Technology has undoubtedly changed the way we communicate.”
📚Related Words
Synonyms
Antonyms
Related
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