Synonyms

Uncouth means something which is unrefined and the word rough goes with it.

Frank is a synonym of candid.
As adjectives the difference between frank and candid is that frank is honest, especially in an manner that seems slightly blunt while candid is impartial and free from prejudice.

Solvent : means able to pay one's debts or not in debt.
Bankrupt :  means unable to pay his debts or exhausted.
So insolvent means bankrupt.

Diligent is a synonym for hardworking in industrious topic.

Transparent : (of a material or article) allowing light to pass through so that objects behind can be distinctly seen.
Fleeting : lasting for a very short time.
Feeble : lacking physical strength, especially as a result of age or illness.
Fanciful : over-imaginative and unrealistic.
Transient : lasting for a very short time.

Synonym of Transient is Fleeting

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.

Soothe : gently calm (a person or their feelings).
Merge : combine or cause to combine to form a single entity.
Purchase : acquire (something) by paying for it; buy.
Glisten : (of something wet or greasy) shine with a sparkling light.
Meld : blend; combine.

Synonym of Meld is Merge

The synonym of NEUTRAL is unbiased.