Question

What is meant by the words obnoxious, mitigate, vitiate and culminate?
( Don't copy from Google please)
Give me an answer in simpler words

Answer 1

Obnoxious -- refers to harsh or unpleasant or disrespectful attitude

Mitigate-- lessen or reduce

culminate -- the end of any event

vitiate -- To spoil something

Answer 2

Obnoxious - means some one or something is -  highly objectionable, annoying, attracting undue attention, irritate , disturb.          Antonym is Delightful.
   The obnoxious little brats irritate me every day.
Mitigate :  means  reduce the effect of something, to make something milder
                     One can do a lot of things to mitigate risks, but perhaps one cannot 
                       eliminate them (risks).  Government should do a lot of things to
                       mitigate the water shortage problem.
culminate :  reaching a highest point of performance,  reaching the final stage of doing
                   something,   some towers culminate in a pyramidal shape.  The various
                   functions and celebrations culminate in a classical dance or music program.