Synonyms

To lynch is to murder, or unlawfully kill. When an angry mob kills someone they believe is guilty of a crime, they lynch that person. Through history, when a group of people murders someone, especially by hanging him by the neck, they are usually said to lynch him.

Artificial : made or produced by human beings rather than occurring naturally, especially as a copy of something natural.
Superficial : appearing to be true or real only until examined more closely.
Foolish : lacking good sense or judgement; unwise.
Worthless : having no real value or use.
Shallow : not exhibiting, requiring, or capable of serious thought.

Synonym of Shallow is Superficial

When used as verbs, admonish means to warn or notify of a fault, whereas reprimand means to reprove in a formal or official way. Reprimand is also noun with the meaning: a severe, formal or official reproof.