sure

sure · adjective

imported

Definitions

adjective

  1. 1.

    (adjective) Completely confident that one is right.

  2. 2.

    (adjective) Certain to happen or be true.

  3. 3.

    (adjective) Reliable or trustworthy.

  4. 4.

    (adverb, informal) Certainly; yes.

Related words

Antonyms: doubtful, uncertain, unsure
See also: certain, confident, secure
Synonyms: certain, confident, definite, positive

Etymology

From Old French sur, seur ("safe, secure, trustworthy"), from Latin sēcūrus ("free from care, untroubled"), from sē- ("without") + cūra ("care"). Related to secure.