Silent

1. Free from sound or noise; absolutely still; perfectly quiet.
2. Not speaking; indisposed to talk; speechless; mute; taciturn; not loquacious; not talkative.
3. Keeping at rest; inactive; calm; undisturbed.
4. (pronunciation) Not pronounced; having no sound; quiescent.
5. Having no effect; not operating; inefficient.
6. (technology) With the sound turned off; usually on silent or in silent mode.
7. (technology) Without audio capability.
8. Hidden, unseen.
9. Of an edit or change to a text, not explicitly acknowledged.
10. Not implying significant modifications which would affect a peptide sequence.
11. Undiagnosed or undetected because of an absence of symptoms.
12. Of distilled spirit: having no flavour or odour.

(free from sound or noise): quiet

(not speaking; indisposed to talk): speechless, taciturn

(not speaking; mute): dumb, mute

(keeping at rest): dormant, still; inactive

(not pronounced): mute, quiescent, servile

(hidden; unseen): concealed, invisible, occluded; hidden