Synonyms

Mute means quiet; silent.

The phrase 'figure out' means 'to come to understand someone or something better'. 

'Orthodox' means 'following the traditional or generally accepted rules or beliefs of a religion, philosophy or practice'. So, option 4 is the correct answer.

'Amateur' is someone who 'engages in an activity as a pastime'. Thus, option (3) is the correct answer.

'Perish' means 'to die or be destroyed/extremely cold'. But in the context of the sentence, the word/phrase which is closest in meaning to 'perish' is 'very severe'.

It is used to refer to something 'characterised by the use of many or too many words; wordy'.

'Sophiscated' means something 'developed to a high degree of complexity'. Thus, option (3) is the closest in meaning to it. 

It means to leave completely or forsake.

It means having or showing great warmth or intensity of spirit, feeling, enthusiasm, etc.

 Here, short is the correct synonym as it implies explanation which should take a small amount of time. Verbose is using or expressed in more words than are needed, candid implies truthful and straightforward and honest implies sincere and free from deceit.

 Here, inactive is the correct option as it implies not engaging in any activity. Drowsy implies sleepy and lethargic, dull implies lacking brightness, vividness or sheen and paralysed implies becoming partly or wholly incapable of movement.

 Here, countless is the correct option as it implies something that something that is too much in number. Indefinite is something that is lasting for an unknown or unstated length of time, vague refers to uncertain, indefinite, or unclear character or meaning and frequent refers to something that is occurring or done many times at short intervals.

 Here, enthusiasm is the correct option as it implies intense and eager enjoyment and interest. Love implies a strong feeling of affection, piousness implies having or exhibiting religious reverence and devotion implies prayers or religious observances.

 Here, feeble is the correct synonym of effete as it implies someone lacking physical strength. Corrupt is someone having or showing a willingness to act dishonestly in return for money or personal gain, decayed is falling into disrepair and arid is someone lacking interest or excitement in something.

 Here, bold is the correct synonym of brazen as it implies an action which is courageous and risky. Unashamed implies an action done openly and without any guilt or embarrassment, humble is showing a modest or low estimate of one's importance and loud, as an adverb implies doing something with a great deal of volume.