Of a person, or a person's heart, mind, or character: having the emotional or mental qualities necessary for dealing with difficult or distressing…

Of a person, state of mind, attribute, etc.: not easily turned aside, unwavering, resolute, steadfast. Hence also: †obstinate, stubborn (obsolete).

Esp. of an inheritance, sum of money, etc.: that may be counted on to be received; certain to come into a person's possession. Frequently with to…

Of a plan, method, etc.: certain to succeed; admitting no possibility of failure, foolproof. Of a future event or an aim: certain to happen or…

Colloquial phrase in the bag (i.e. game-bag; see sense 9): (a) Australian and New Zealand (see quot. 1945); (b) (to be put) in the bag, (to be) taken…

figurative. Likely to prove profitable or advantageous; very favourable or secure.