"secure from harm"; "his fortune was secure"; "made a secure place for himself in his field"
is similar to
characterized by certainty or security
"a tiny but assured income"; "we can never have completely assured lives"
is similar to
securely established
"holds a firm position as the country's leading poet"
is similar to
guaranteed not to fail
"a fail-safe recipe for cheese souffle"
is similar to
physically secure or dependable
"a sure footing"; "was on sure ground"
see also
kept safe or defended from danger or injury or loss
"the most protected spot I could find"
see also
free from danger or the risk of harm
"a safe trip"; "you will be safe here"; "a safe place"; "a safe bet"
see also
immune to attack; impregnable
"gunners raked the beach from invulnerable positions on the cliffs"