Synonyms for «intensive research»

intense extensive rigorous thorough detailed concentrated diligent deep careful dedicated high ongoing important numerous lengthy scientific strong massive serious profound significant meticulous exhaustive based recent considerable several investigative wide various specific market substantial innovative comprehensive good painstaking new much copious multiple sustained huge extended increased quality necessary tremendous scholarly

study investigation researchers analysis review search work project testing development training education exploration science report paper practice investment experience topic focus discussion inquiry efforts information interest findings evaluation reading article skills examination process learning interviews amount subject campaign program data instruction industry advance time observation knowledge planning care lot