This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

adj. Secure from violation or profanation: an inviolable reliquary deep beneath the altar.

adj. Impregnable to assault or trespass; invincible: fortifications that made the frontier inviolable.

adj. Not violable; not susceptible of violence, or of being profaned or corrupted; incapable of being injured; not to be infringed or dishonoured.

adj. Not violable; not susceptible of hurt, wound, or harm (used with respect to either physical or moral damage); not susceptible of being profaned or corrupted; sacred; holy

adj. Unviolated; uninjured; undefiled; uncorrupted.

adj. Not capable of being broken or violated.

Not to be violated; having a right to or a guaranty of immunity; that is to be kept free from violence or violation of any kind, as infraction, assault, arrest, invasion, profanation, etc.: as, an inviolable peace or oath; inviolable territory; inviolable sanctity.

That cannot be violated; not subject to violence; incapable of being injured.

adj. incapable of being transgressed or dishonored

adj. immune to attack; incapable of being tampered with

adj. not capable of being violated or infringed

adj. must be kept sacred

"And thus inviolable is the covenant of grace: I have sworn that I would not be wroth with thee, as I have been, and rebuke thee, as I have done."

untouchable    unassailable    invulnerable    inalienable    unalienable    sacred   

inviolably    inviolability    inviolableness   

sacred    holy    unviolated    uninjured    undefiled    uncorrupted    hallowed    sacramental    sacrosanct    invincible   

violable   

unalterable    inviolate    unshaken    unswerving    unassailable    irrevocable    incorruptible    unbreakable    undeviating    untouchable