IPA: /ˌæntiˈsɒdəmi/
KK: /æntiˈsɑdəmi/
Relating to efforts or actions aimed at stopping or banning certain sexual acts, particularly sodomy.
The group organized a campaign against antisodomy laws in their state.
Antisodomy is formed from "anti-" (meaning against) and "sodomy" (from Latin "sodomia", meaning sexual intercourse between persons of the same sex). The term refers to opposition against sodomy or same-sex sexual relations.
Think of 'against' ('anti-') and 'sodomy' as a specific type of sexual act — this helps you remember that antisodomy means opposition to that act.
No commonly confused words.