certain
cer-tain
adjective
Referring to a particular person or thing without naming them.
"A certain individual expressed concerns."
adjective
Definitely true or established; not open to question or dispute.
"It is certain that winter will come."
adjective
Feeling completely sure or convinced about something; having no doubt.
"I am certain he will arrive on time."
Thesaurus
Synonyms: sealed, doomed, destined, predestined, sure, foreordained, in for, predestinate, bound, fated, reliable, dependable