sure (adjective) sure: certain, definite
Sinonime: abiding,
assured, changeless,
clear,
confident,
constant,
convinced,
convincing,
decided, doubtless,
enduring,
firm,
fixed, for a fact, free from doubt,
genuine, incontestable,
incontrovertible, indisputable,
indubitable, never-failing, persuaded,
positive,
real,
satisfied,
set,
steadfast,
steady,
telling, unchangeable,
unchanging,
uncompromising,
undeniable,
unequivocal, unfailing, unfaltering, unqualified, unquestionable, unquestioning, unshakable, unshaken, unvarying,
unwavering,
validAntonime: doubtful,
dubious,
indefinite,
uncertain,
unsure,
variable,
wavering