restraint - limit, moderation⏎
sample - tester, taste, example, small amount⏎
restrict - limit amount or size of keep under control⏎
undisclosed - concealed, hidden, not made known⏎
unfriendly - hostile, opposing, antagonistic⏎
secure - safe, protected, achieve (something)⏎
simulate - imitate, create artificially⏎
rotate - change regularly, pass to each member in regular order⏎
x-rated - adult, pornographic, unsuitable for children and under-age people⏎
yardstick - gauge, a measure⏎