zweifellos
Translation
undoubtedly, doubtless, without a doubt
Examples
Das ist zweifellos die richtige Entscheidung.
That is undoubtedly the right decision.
Er wird zweifellos Erfolg haben.
He will undoubtedly be successful.
Grammar Patterns
undoubtedly + adjective/sentence This is undoubtedly the best option.
Similar Words
Synonyms: ohne Zweifel, sicherlich, unbestreitbar; Antonyms: fraglich, unsicher
Etymology
From 'Zweifel' (doubt) + the suffix '-los' (-less). Literally 'doubt-less'.
Memory Tips
It has the exact same structure as the English word 'doubtless': Zweifel (doubt) + los (less).