clamant in WordNet English dictionary

1. conspicuously and offensively loud; given to vehement outcry
   "blatant radios"; "a clamorous uproar"; "strident demands"; "a vociferous mob"
   blatant  clamant  clamorous  strident  vociferous 
   
2. demanding attention
   "clamant needs"; "a crying need"; "regarded literary questions as exigent and momentous"- H.L.Mencken; "insistent hunger"; "an instant need"
   clamant  crying  exigent  insistent  instant