To: koan who wrote (24702 ) 4/13/2012 3:08:51 PM From: Greg or e Respond to of 69300 Definition of SURE 1 obsolete : safe from danger or harm 2 : firmly established : steadfast <a sure hold> 3 : reliable , trustworthy <a sure friend> 4 a : marked by or given to feelings of confident certainty <I'm sure I'm right> b : characterized by a lack of wavering or hesitation <sure brush strokes> <a sure hand> 5 : admitting of no doubt : indisputable <spoke from sure knowledge> 6 a : bound to happen : inevitable <sure disaster> b : bound , destined <is sure to win> 7 : careful to remember, attend to, or find out something <be sure to lock the door> — sure·nessnoun — for sure : without doubt or question : certainly — to be sure : it must be acknowledged : admittedly ] See sure defined for English-language learners » See sure defined for kids » Examples of SURE She's not sure who will be there. Are you sure you want to go? Are you sure about that? She'll be there, I'm sure of it. Are you sure of the results? The return of the robins is a sure sign of spring. The letter is a sure indication that she cares. Pizza is a sure crowd pleaser. The surest way to lose weight is with diet and exercise. One sure way to improve your health is to stop smoking. Origin of SURE Middle English seur, sure, from Anglo-French seur, from Latin securus secure First Known Use: 13th century Related to SURE Synonyms: assured , clear , cocksure , confident , doubtless , implicit , positive , sanguine , certain Antonyms: doubtful , dubious , uncertain , unsure Related Words: self-assured , self-conceited , self-confident ; decisive , resolute , unfaltering , unhesitating , unquestioning , unwavering Near Antonyms: hesitant , indecisive , vacillating , wavering ; diffident , unassuming see all synonyms and antonyms [+]more [-]hide