best efforts
noun[plural]
ukusLAW(alsobest endeavours)
thegreatestpossibleefforttoachievesomething or do something,especiallywhen this isdifficult:
use your best efforts to do sthThebuyershall use hisbesteffortsto get anacceptablepurchasecontractfor thisproperty.
FINANCE
thegreatestpossibleeffortby afinancialorganization, such as aninvestmentbank, tosella company's newshares, when it does not have topromisetosellthem all and it does not have tobuythesharesit does notsell:
use your best efforts to do sthThenationaldistributorhasagreedto useitsbesteffortstosellsharesof thefund.
best-efforts
adjective[before noun]
Many of this year's newloanshave been done on abest-effortsbasis.