Synonyms of the word

out-of-bounds

• adj. Adjectival form of out of bounds.

foul

• adj. Covered with, or containing unclean matter; dirty.
• adj. (of words or a way of speaking) obscene, vulgar or abusive.
• adj. Detestable, unpleasant.
• adj. Disgusting, repulsive; causing disgust.
• adj. (obsolete) Ugly; homely; poor.
• adj. (of the weather) Unpleasant, stormy or rainy.
• adj. Dishonest or not conforming to the established rules and customs of a game, conflict, test, etc.
• adj. (nautical) Entangled and therefore restricting free movement, not clear.
• adj. (baseball) Outside of the base lines; in foul territory.
• v. (transitive) To make dirty.
• v. (transitive) To besmirch.
• v. (transitive) To clog or obstruct.
• v. (transitive, nautical) To entangle.
• v. (transitive, basketball) To make contact with an opposing player in order to gain advantage.
• v. (transitive, baseball) To hit outside of the baselines.
• v. (intransitive) To become clogged.
• v. (intransitive) To become entangled.
• v. (intransitive, basketball) To commit a foul.
• v. (intransitive, baseball) To hit a ball outside of the baselines.
• n. (sports) A breach of the rules of a game, especially one involving inappropriate contact with an opposing…
• n. (bowling) A (usually accidental) contact between a bowler and the lane before the bowler has released…
• n. (baseball) A foul ball, a ball which has been hit outside of the base lines.

off-limits

• adj. Not to be entered or used; restricted.

restricted

• v. simple past tense and past participle of restrict.
• adj. Limited within bounds.
• adj. Available only to certain authorized groups of people.
• adj. (US, dated) Only available to customers who don't belong to racial, ethnic or religious minorities.
• adj. One of the classifications of the secrecy of an official document.
• adj. (grammar) Qualified.