Select the most appropriate synonym of the given

OBSEQUIOUS

What is the synonym for the word "onus"?

Select the option that can be used as a one-word substitute for the given group of  words.

A person with a long experience in any occupation

Select the correct SYNONYM of the given word. 

celestial

Choose the one which best expresses the meaning of the given word .

Zenith

Match the words in List-I with their definitions in List-II: 

Cohesive

Diffuse

Select the most appropriate antonym of the given word.

Resilient 

Find the appropriate answer.