Wordnet 3.0
ADJECTIVE (1)
1.
expressing antithesis or opposition;
- Example: "the adversative conjunction `but' in `poor but happy'"[syn: adversative, oppositive]
The Collaborative International Dictionary of English v.0.48:
Oppositive \Op*pos`i*tive\, a. [Cf. F. oppositif. See
Opposite.]
Capable of being put in opposition. --Bp. Hall.
[1913 Webster]
WordNet (r) 3.0 (2006):
oppositive
adj 1: expressing antithesis or opposition; "the adversative
conjunction `but' in `poor but happy'" [syn:
adversative, oppositive]