Synonyms of the word

silent

• adj. Free from sound or noise; absolutely still; perfectly quiet.
• adj. Not speaking; indisposed to talk; speechless; mute; taciturn; not loquacious; not talkative.
• adj. Keeping at rest; inactive; calm; undisturbed.
• adj. (pronunciation) Not pronounced; having no sound; quiescent.
• adj. Having no effect; not operating; inefficient.
• adj. (technology) Without audio capability.
• adj. Hidden, unseen.
• adj. Of an edit or change to a text, not explicitly acknowledged.
• adj. Not implying significant modifications which would affect a peptide sequence.
• adj. Undiagnosed or undetected because of an absence of symptoms.
• n. (uncountable) That which is silent; a time of silence.
• n. A silent movie.

dumb

• adj. (dated) Unable to speak; lacking power of speech (kept in "deaf, dumb, and blind").
• adj. (dated) Silent; unaccompanied by words.
• adj. (informal, pejorative, especially of a person) extremely stupid.
• adj. (figuratively) Pointless, foolish, lacking intellectual content or value.
• adj. Lacking brightness or clearness, as a colour.
• v. (dated) To silence.
• v. (transitive) To make stupid.
• v. (transitive) To represent as stupid.
• v. (transitive) To reduce the intellectual demands of.

implicit

• adj. Implied indirectly, without being directly expressed.
• adj. Contained in the essential nature of something but not openly shown.
• adj. Having no reservations or doubts; unquestioning or unconditional; usually said of faith or trust.
• adj. (obsolete) entangled, twisted together.

implied

• adj. Suggested without being stated directly; implicated or hinted at.
• v. simple past tense and past participle of imply.

inarticulate

• adj. (of speech) not articulated in normal words.
• adj. speechless.
• adj. unable to speak with any clarity.
• adj. (biology) not having joints or other articulations.
• n. (zoology) An animal belonging to the subphylum Inarticulata.

inaudible

• adj. Unable to be heard or not loud enough to be heard.

incommunicative

• adj. Uncommunicative.

inexplicit

• adj. Not explicit.

mum

• n. (Britain, Australia, New England, informal) Mother.
• n. (dated, colloquial) ma'am; a term of respect for an older woman.
• n. A chrysanthemum.
• adj. (colloquial) silent.
• adj. (colloquial) secret.
• interj. stop speaking! hush!
• v. to act in a pantomime or dumb show.
• n. (obsolete) silence.
• n. A sort of strong beer, originally made in Brunswick, Germany.

mute

• adj. Not having the power of speech; dumb.
• adj. Silent; not making a sound.
• adj. Not uttered; unpronounced; silent; also, produced by complete closure of the mouth organs which interrupt…
• adj. Not giving a ringing sound when struck; said of a metal.
• n. (phonetics, now historical) A stopped consonant; a stop.
• n. (obsolete, theater) An actor who does not speak; a mime performer.
• n. A person who does not have the power of speech.
• n. A hired mourner at a funeral; an undertaker's assistant.
• n. (music) An object for dulling the sound of an instrument, especially a brass instrument, or damper for…
• v. (transitive) To silence, to make quiet.
• v. (transitive) To turn off the sound of.
• v. (now rare) Of a bird: to defecate.
• n. The faeces of a hawk or falcon.
• v. (transitive) To cast off; to moult.

quiet

• adj. With little or no sound; free of disturbing noise.
• adj. Having little motion or activity; calm.
• adj. Not busy, of low quantity.
• adj. Not talking much or not talking loudly; reserved.
• adj. Not showy; undemonstrative.
• adj. (software) Requiring little or no interaction.
• v. To become quiet, silent, still, tranquil, calm.
• v. To cause someone to become quiet.
• n. The absence of sound; quietness.
• n. the absence of movement; stillness, tranquility.
• interj. Be quiet.

soundless

• adj. without sound.
• adj. Not capable of being sounded or fathomed; unfathomable.

still

• adj. Not moving; calm.
• adj. Not effervescing; not sparkling.
• adj. Uttering no sound; silent.
• adj. (not comparable) Having the same stated quality continuously from a past time.
• adj. Comparatively quiet or silent; soft; gentle; low.
• adj. (obsolete) Constant; continual.
• adv. Without motion.
• adv. (aspect) Up to a time, as in the preceding time.
• adv. (degree) To an even greater degree. Used to modify comparative adjectives or adverbs.
• adv. (conjunctive) Nevertheless.
• adv. (archaic, poetic) Always; invariably; constantly; continuously.
• adv. (extensive) Even, yet.
• n. A period of calm or silence.
• n. (photography) A photograph, as opposed to movie footage.
• n. (slang) A resident of the Falkland Islands.
• n. A steep hill or ascent.
• n. a device for distilling liquids.
• n. (catering) a large water boiler used to make tea and coffee.
• n. (catering) the area in a restaurant used to make tea and coffee, separate from the main kitchen.
• n. A building where liquors are distilled; a distillery.
• v. to calm down, to quiet.
• v. (obsolete) To trickle, drip.
• v. To cause to fall by drops.
• v. To expel spirit from by heat, or to evaporate and condense in a refrigeratory; to distill.

tacit

• adj. Expressed in silence; implied, but not made explicit; silent.
• adj. (logic) Not derived from formal principles of reasoning; based on induction rather than deduction.

uncommunicative

• adj. Tending not to communicate; not communicating.

understood

• adj. Of things which have been comprehended.
• v. simple past tense and past participle of understand.
• interj. Indicates comprehension on the part of the speaker.

unhearable

• adj. That cannot be heard.

unsounded

• adj. unfathomed.