undoubtedly - Master This Word
Master this word with our 5-step learning method – Learn English in English
undoubtedly Word Meanings
- without doubt
- certainly
- clearly
undoubtedly Example Sentences
Example sentences are the start of understanding. Don't rush to memorize. First feel how the word works in a sentence.
undoubtedly Phonetic & Pronunciation
UK
/ʌnˈdaʊtɪdli/
US
/ʌnˈdaʊtɪdli/
undoubtedly Word Etymology
un- = not, doubt = uncertainty; from Latin 'dubitare' → Old French → English. Imagine a person shaking their head in disbelief, holding a sign that says 'No Doubt!'
Note 1: These definitions and etymologies are not standard dictionary definitions, but extended explanations provided to help with memorization and understanding of the actual application of words. Through this background information, we strive to make words more vivid and easier to understand, and help you remember their meanings in real life.
Note 2: LexiTalk designs the learning flow around the linguistics principle of “Comprehensible Input.” When learners encounter material that is slightly above their level but still understandable from context, the brain naturally absorbs the language. That’s why we keep every word inside authentic contexts, using examples and associations to help you understand it and use it flexibly.
Read the FAQ explanation of Comprehensible InputEnglish Brain Route
I move my hand to turn the page, letting the scene unfold with a calm, steady breath. I push away doubt and adjust my posture, keeping my eyes fixed on what comes next. It feels undoubtedly certain as I place my attention on the detail and hold it there. That quiet confidence moves my thinking forward, and I keep reading with purpose and control.
Real Context
Undoubtedly is an adverb meaning without doubt, certainly, or clearly. It is used to strengthen a claim, often in formal writing or after presenting evidence. In speech it can sound emphatic but may seem pompous if overused in casual conversation. The word comes from un- (not) + doubt, tracing through Latin dubitare to Old French and into English. A handy mental image is someone nodding decisively while holding a sign that says 'No Doubt!' to signal that the conclusion is meant to be accepted as true. Learners should notice its strong, affirmative tone and reserve it for points they genuinely regard as well supported.
Usage Reminders
- Use undoubtedly after presenting evidence. Avoid overusing in informal speech. Pair with strong facts. Don’t rely on it for opinions not supported by proof. Place it at the start of a clause for emphasis.
Common Misconceptions
- Confusing undoubtedly with doubtlessly in all contexts
- Using it before a reason instead of after
- Believing it fits casual speech as a substitute for certainly
- Overestimating how formal it sounds in conversation
- Thinking it always adds credibility, regardless of evidence
Thinking Differences
Native English speakers often reserve undoubtedly for well-supported conclusions and prefer concise emphasis; some learners misuse it after weak arguments or in casual speech, where alternatives like surely or certainly fit better.
Learning Tips
- Read sentences with each tone example.
- Record yourself using it after evidence.
- Compare with certainly and obviously.
- Note its formality in different registers.
- Practice placing it at clause start for emphasis.
- Use in written essays to show confidence.
5-Step Learning Method - Learn English in English
Step 2: Usage
In which sentence is 'undoubtedly' used correctly?
A.He undoubtedly forgot his lunch at home.
B.Undoubtedly, he will never learn from his mistakes.
C.She will undoubtedly go to the party tonight.
D.I undoubtedly don't like ice cream.
Step 3: Similar Words
Which word is an **opposite** of 'undoubtedly'?
A.Surely
B.Possibly
C.Certainly
D.Definitely
Step 4: Opposite Words
Provide a real-life scenario where 'undoubtedly' would be used.
A.Ordering a drink at a coffee shop
B.Receiving a surprise gift from a friend
C.Completing a marathon after months of training
D.Winning a competition based on talent
Step 5: Mastery
Reflect on a situation where you could use 'undoubtedly' and create a sentence using the word.
A.Excited to go on vacation
B.Solving a challenging problem
C.Meeting a close friend after a long time
D.Talking to a stranger at a party
Related Listening
🔥 Advanced
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