inverse (
http://definr.com/inverse)
adj 1: inversely related; "1/2 is the inverse of 2"
2: reversed (turned backward) in order or nature or effect
[syn:
reverse]
3: (mathematics) varying in a manner opposite to that of
another quantity; "a term is in inverse proportion to
another term if it increases (or decreases) as the other
decreases (or increases) [ant:
direct]
n 1: (math) one of a pair of numbers whose product is 1: the
reciprocal of 2/3 is 3/2; the inverse of 7 is 1/7 [syn:
reciprocal]
2: something inverted in sequence or character or effect; "when
the direct approach failed he tried the inverse" [syn:
opposite]