contentious
con|ten|tious /kənt'enʃəs/
[ADJ]
A contentious issue causes a lot of disagreement or arguments. (FORMAL)
Sanctions are expected to be among the most contentious issues.
...a country where land prices are politically contentious.
= controversial
[ADJ]
A contentious issue causes a lot of disagreement or arguments. (FORMAL)
Sanctions are expected to be among the most contentious issues.
...a country where land prices are politically contentious.
= controversial