1. Lucid:

lucky

acidity

stupid

clear

2. Although buses are 'scheduled' to depart on a certain hour, they are often late.

listed

obligated

loaded

serialized

3. INDIGENOUS--

thoughtful

disperse

link

None of these

4. The opposite of 'Nebulous' is--

clear

unclear

vague

indistinct

5. The synonym of 'Altercation' is--

adjustment

quarrel

alteration

implication

6. EXHILARATING--

Extending

Thrilling

Depressing

Exhausting

7. The antonym of 'native' is:

local

congenial

intrinsic

alien

8. Launch:

review

begin

propel

push

9. Fastidious is most nearly opposite in meaning to—

Monotonous

Aloof

Easygoing

Interminable

10. PLACID:

Circumspect

Inept

Serene

Now