From WordNet (r) 3.0 (2006) [wn]:
go against
v 1: fail to agree with; be in violation of; as of rules or
patterns; "This sentence violates the rules of syntax"
[syn: violate, go against, break] [ant: conform to]
2: act in disregard of laws, rules, contracts, or promises;
"offend all laws of humanity"; "violate the basic laws or
human civilization"; "break a law"; "break a promise" [syn:
transgress, offend, infract, violate, go against,
breach, break] [ant: keep, observe]
3: resist; "buck the trend" [syn: buck, go against]