Synonyms

Correct answer :(1)The word 'impious' means not pious or religious ,lacking reverance for God, hence (1) is the answer.Option (2)  'congregation' means an assembly of persons brought together for common religious worship. 'Option (3) 'egregious' is extraordinary in some bad ways. Option (4) 'esoteric' means belonging to a select few of special knowledge.

'Candid' means straightforward, sincere and open. Hence, option (4) is the answer.

'Besmirch' is to bring dishonor to, sully or defame. Of all the options, 'scandalise' in option (2) means the same. Hence, it is the answer. 

'Averse' is not willing or inclined or opposed (to), 'reluctant' in option (3) also means just the same. Hence, (3) is the answer.

Illimitable literally means 'cannot be limited' or boundless - the prefix 'il-' means 'not' and 'limitable' refers to having boundaries. Infinite is the correct answer as both words describe something without end or boundaries. Bounded, controlled, regulated, and limitable are all antonyms that suggest constraints or limits.

Imbue means to permeate, inspire, or saturate someone or something thoroughly with a particular quality, feeling, or principle. Infuse is the correct synonym as it means to fill or inspire with a quality or essence. Discard (to throw away), teach (to instruct), remorseful (feeling regret), and colour (to tint) don't capture the sense of thorough inspiration or saturation.

 Someone who is impassive or unemotional is generally calm. Hence, calm is correct.

Impeccable means flawless or entirely without fault - the prefix 'im-' means 'not' and 'peccable' comes from 'peccare' (to sin). Faultless is the correct synonym as both describe something completely perfect. Purgative (cleansing), wrong (incorrect), disabled (unable to do something), and raw (unrefined) are all unrelated to the concept of flawlessness.

Imperious means assuming power or authority without justification; arrogant and domineering. Commanding is the correct synonym as both convey the sense of exercising authority and expecting obedience. Odd (strange), obedient (compliant - the opposite), absolve (to forgive), and perilous (dangerous) don't capture the authoritarian attitude.

Implausible means not seeming reasonable or probable; unlikely to be true. Unlikely is the correct synonym as both convey low probability. Likely (A), possible (B), conceivable (D), and comprehensible (E) are all antonyms or unrelated - they suggest something could happen, whereas implausible suggests it probably won't.

Imperturbable means unable to be upset or excited; calm and composed. Serene is the correct synonym as both describe a peaceful, untroubled state. Confused, disturbed, and vulnerable are all antonyms that suggest being affected by emotions. Passive is unrelated to calmness.

Impending means about to happen; forthcoming or imminent. Imminent is the correct synonym as both describe something about to occur very soon. Impossible and unlikely suggest something won't happen, while dominating and dogmatic refer to exercising authority.

Impecunious means having little or no money; penniless. Penniless is the correct synonym as both describe someone without money. Affluent, flourishing, and successive all suggest wealth or progress, while resourceful means able to cope with difficulties - not the same as being broke.