Search Result for "underside": 
Wordnet 3.0

NOUN (1)

1. the lower side of anything;
[syn: bottom, underside, undersurface]


The Collaborative International Dictionary of English v.0.48:

Underside \Un"der*side`\, n. The lower or lowest side of anything. --Paley. [1913 Webster]
WordNet (r) 3.0 (2006):

underside n 1: the lower side of anything [syn: bottom, underside, undersurface]
Moby Thesaurus II by Grady Ward, 1.0:

21 Moby Thesaurus words for "underside": bed, bedrock, belly, bottom, bottom side, breech, buttocks, downside, fundament, hardpan, lower side, lowest layer, lowest level, nether side, nethermost level, rock bottom, sole, substratum, underbelly, underlayer, underneath