adjective

free from dirt, marks, or stains.

the room was spotlessly clean

washed,scrubbed,cleansed,cleaned,polished,spotless,unsoiled,unstained,unspotted,unsullied,unblemished,immaculate,pristine,speckless,dirt-free,hygienic,sanitary,disinfected,sterilized,sterile,aseptic,decontaminated,healthy,pure,white,whiter than white,laundered,squeaky clean,as clean as a whistle