Synonyms for undoubtedly
Most common
All synonyms
Adverb
1. Doubtlessly
doubtlessly, unquestionably, doubtless, certainly, surely, indubitably, definitely, undoubtably, actually, assuredly, sure informal US, positively, undeniably, indisputably, forsooth formal dated
Other
Definitions
- adv. 1
Without doubt; definitely.
Example sentences
- certainly At that time the snow plow was certainly our hero.
- unquestionably He is unquestionably the oldest man in the village.
- doubtless The truth of the holocaust is doubtless.
- naturally Naturally we will be careful to avoid an accident.
Popularity over time
| Word | 1850 → 2019 | Trend |
|---|---|---|
| undoubtedly | falling | |
| certainly | steady | |
| unquestionably | falling | |
| doubtless | falling | |
| doubtlessly | falling |
Use in printed books, per decade from 1850 to 2019.
By length
- 4 letters
- sure1
- 6 letters
- surely2
- 8 letters
- actually4, forsooth
- 9 letters
- certainly3, naturally4, doubtless2, assuredly4
- 10 letters
- definitely4, positively4, undeniably5
- 11 letters
- indubitably, doubtlessly, undoubtably
- 12 letters
- indisputably5, unmistakably5
- 14 letters
- unquestionably5
The small number after each word is its number of syllables (surely2 = 2 syllables).
In other languages
- Français
- sans aucun doute
- Deutsch
- zweifellos