Word
undoubtedly
Phoneticsun·doubt·ed·ly, stress on the second syllable
US/ənˈdaʊtɪdɫi/
UK/ʌndˈaʊtɪdli/
日本語きっと※
Sentence adverb
Definition
adv. used to say that something is definitely true and nobody can argue with it. You use it when you are completely sure about a fact or an opinion.
adv. without any doubt; certainly. Functions as a sentence-modifying disjunct to emphasize the speaker's certainty regarding the truth of a proposition.
Examples
“She is undoubtedly the best player on the team.”
“The new policy is undoubtedly a step in the right direction for environmental protection.”
“While the initial investment is high, the long-term benefits of renewable energy are undoubtedly superior to those of fossil fuels.”
Examples
simple
“She is undoubtedly the best player on the team.”
contextual
“The new policy is undoubtedly a step in the right direction for environmental protection.”
complex
“While the initial investment is high, the long-term benefits of renewable energy are undoubtedly superior to those of fossil fuels.”
Collocations
Common phrases and expressions where native English speakers use the word “undoubtedly” in context.
Verb
01. undoubtedly lead
“Failure to address these structural issues will undoubtedly lead to further complications.”
adv + verb
02. undoubtedly make
“Her extensive experience in the field will undoubtedly make her the strongest candidate.”
adv + verb
03. undoubtedly provide
“The new investment will undoubtedly provide a much-needed boost to the local economy.”
adv + verb
Usage
Typically placed before the main verb, after the auxiliary verb, or at the beginning of a sentence for emphasis.
Pitfall
It is undoubtedly that he will win.
He will undoubtedly win.
Undoubtedly is an adverb and cannot be used as a predicate adjective following 'It is'; use 'undoubted' or 'beyond doubt' in that structure.
Real-World Examples
“David Willetts, the Conservative former universities minister and an architect of higher tuition fees, said universities were undoubtedly “under increasing financial pressure and that’s mainly because of the freeze in fees for eight years”.” “Although Israel will undoubtedly be seen as the target of the rule change, it will also affect Ukraine, which has been engaged in a protracted war since it was invaded by Russia in 2022.” “The BMA said there will "undoubtedly be cancellation of operations, outpatient appointments and elective care" but "patient safety will still be prioritised".” Etymology
From Middle English undoutedly, equivalent to undoubted + -ly.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.
Word family
NOUN
ADJECTIVE
ADVERB
- Exam level
- CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.C1 AdvancedIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.7.0–8.0TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 5.0–5.595–113TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.945–990
- Frequency
- Frequent
- Level
- C1 · AdvancedOxford
- Updated
- アルファベット
- 読み方の一覧 →
QR code
englishreference.com/q/undoubtedly
※ 機械で選んだ訳語です。ネイティブスピーカーによる確認はまだです。
「日本語」 data: JMdict (EDRDG), CC BY-SA 4.0