Fibber
The word 'sophisticated' is not a noun at all. The word 'sophisticated' is an adjective, a word used to describe a noun.The abstract noun form is 'sophistication', a word for the a quality of being cultured, knowledgeable, complex, or subtle; a word for a concept.A related noun form is 'sophisticate', a concrete noun, a word for a person.
Mute
A person who can not or will not speak is known as a 'mute'
The word sophisticated in Spanish is sofisticado.
English word is - mute
Reserved or reticent.
Historically, the word dumb meant that a person could not speak.
Quiche.
A person who has lied or who lies repeatedly wordnet.princeton.edu/perl/webwn
The word 'liar' is a noun, a word for someone who does not tell the truth; a teller of embellishments, fabrications, and lies; a word for a person.
An adjective is a describing word. Therefore, the word liar is an adjective, because it can be used to describe a person who tells lies.
No, the word "speak" is a verb, not a noun. A noun refers to a person, place, thing, or idea, while a verb is a word that describes an action, occurrence, or state of being. In this case, "speak" describes the action of communicating verbally.