sure - adjective

• having or feeling no doubt or uncertainty; confident and assured
• exercising or taking care great enough to bring assurance
• certain to occur; destined or inevitable
• physically secure or dependable
• reliable in operation or effect
• (of persons) worthy of trust or confidence
• infallible or unfailing
• certain not to fail
• impossible to doubt or dispute



sure - adverb

• definitely or positively (`sure' is sometimes used informally for `surely')

sure - thesaurus

certain   certainly   indisputable   surely   trusted