low relief vs basso relievo

low relief and basso relievo both are nouns.

Word	Noun	Adjective	Verb	Adverb
low relief	Yes	No	No	No
basso relievo	Yes	No	No	No

As nouns, low relief and basso relievo are synonyms defined as:

low relief and basso relievo: a sculptural relief in which forms extend only slightly from the background; no figures are undercut

Other synonyms of low relief include bas relief, basso rilievo.

low relief (noun)	basso relievo (noun)
a sculptural relief in which forms extend only slightly from the background; no figures are undercut	a sculptural relief in which forms extend only slightly from the background; no figures are undercut