sure

Adjective

• impossible to doubt or dispute
  • indisputable (or sure) proof
    

• certain not to fail
  • a sure hand on the throttle
    

• infallible or unfailing
  • a sure (or true) sign of one's commitment
    

• (of persons) worthy of trust or confidence
  • a sure (or trusted) friend
    

• reliable in operation or effect
  • a quick and certain remedy
    
  • a sure way to distinguish the two
    
  • wood dust is a sure sign of termites
    

• physically secure or dependable
  • a sure footing
    
  • was on sure ground
    

• certain to occur; destined or inevitable
  • he was certain to fail
    
  • his fate is certain
    
  • In this life nothing is certain but death and taxes- Benjamin Franklin
    
  • he faced certain death
    
  • sudden but sure regret
    
  • he is sure to win
    

• exercising or taking care great enough to bring assurance
  • be certain to disconnect the iron when you are through
    
  • be sure to lock the doors
    

• having or feeling no doubt or uncertainty; confident and assured
  • felt certain of success
    
  • was sure (or certain) she had seen it
    
  • was very sure in his beliefs
    
  • sure of her friends
    

Adverb

• definitely or positively (`sure' is sometimes used informally for `surely')
  • the results are surely encouraging
    
  • she certainly is a hard worker
    
  • it's going to be a good day for sure
    
  • they are coming, for certain
    
  • they thought he had been killed sure enough
    
  • he'll win sure as shooting
    
  • they sure smell good
    
  • sure he'll come
    

Related words

• Synonyms: 
  indisputable , trusted , certain , certain(p) , surely , certainly , for sure , for certain , sure enough , sure as shooting
• Antonyms: 
  uncertain , unsure , incertain