outside, remote -- (very unlikely; "an outside chance"; "a remote possibility"; "a remote contingency")
distant, remote, removed -- (separate or apart in time; "distant events"; "the remote past or future")
outback, remote -- (inaccessible and sparsely populated;)
distant, remote -- (far apart in relevance or relationship or kinship ; "a distant cousin"; "a remote relative"; "a distant likeness"; "considerations entirely removed (or remote) from politics")