1. (

• clamant ,
• crying ,
• exigent ,
• insistent ,
• instant

) demanding attention; "clamant needs"; "a crying need"; "regarded literary questions as exigent and momentous"- H.L.Mencken; "insistent hunger"; "an instant need" ;

2. (

• exigent ,
• exacting ,

) requiring precise accuracy; "an exacting job"; "became more exigent over his pronunciation" ;