Synonyms of out of bounds

Noun

1. sideline, out of bounds, line

usage: a line that marks the side boundary of a playing field

Adjective

1. out-of-bounds, foul (vs. fair)

usage: outside the foul lines

2. off-limits, out-of-bounds(predicate), restricted (vs. unrestricted)

usage: barred to a designated group; "that area is off-limits"