IPA: /ˈɒpəʊsləs/
KK: /ɑːpəˈsoʊləs/
Describing something that cannot be effectively opposed or resisted.
The new policy was opposeless, gaining support from all sides.
Opposeless is formed from "oppos-" (from Latin "opponere", meaning to place against) and "-less" (meaning without). The word describes a state of being without opposition or resistance.
Think of being 'without' ('-less') anything that is 'placed against' you ('oppos-'). This helps you remember that opposeless means having no opposition.