Surely synonyms such as doggedly, i believe that, certainly, confidently, and determinedly. Surely is an adverb, and its antonyms are doubtfully and uncertainly. Additionally, here are 35 synonyms and nearby words for surely as well as words beginning with S, Su, Sur, Sure, and Surel.
35 synonyms for surely
1. assuredly
I believe that
assuredly
don't tell me that … not …
it must be the case that
without question
2. incontestably
doubtless
for certain
for sure
incontestably
incontrovertibly
indubitably
inevitably
irrefutably
to be sure
unavoidably
undeniably
unquestionably
without doubt
3. securely
assuredly
confidently
determinedly
doggedly
firmly
securely
solidly
steadily
unfalteringly
unhesitatingly
unswervingly