Word Origin Middle English: from obsolete vail ‘be of use or value’ (apparently on the pattern of pairs such as amount, mount), from Old French valoir, from Latin valerenounjump to other results
BrE BrE//əˈveɪl//; NAmE NAmE//əˈveɪl//
(formal) of little or no use Your ability to argue is of little avail if the facts are wrong.
of little/no availjump to other results
(formal) with little or no success The doctors tried everything to keep him alive but to no avail. They worked hard to win the project but all to no avail.
to little/no availjump to other results