synonymy: difference in the range and intensity of their use ,  in  emotive coloring ,  in  application ,  in stylistic features .

antonymy : oppositeness of meaning .

complementaries (absolute)  contraries   converses  (relational)

 some relavent  points:

1 unmarked wider than marked

2some don't have  antonyms

3chinese english word order

4different antonyms under different context

5lexical anto, stronger than syntactic ~