11. enjoin / adjoin

enjoin: to direct or order (someone) to do something; to prevent (someone) from doing something

adjoin (of a building, room, area of land, etc. ): to be next to or joined with something

12.abjure / adjure

abjure: to reject (something) formally

adjure: to urge or command (someone) to do something

13.bypass / surpass / impasse / impassive

bypass: to avoid or ignore (someone or something) especially to get something done quicker

impasse: a situation in which no progress seems possible

impassive: not showing emotion

14.pertinacious / tenacious

pertinacious: adhering resolutely to an opinion, purpose, or design; stubbornly tenacious

tenacious: very determined to do something

15.endanger / engender

engender: to be the source or cause of something

16.intellectual /intelligible / intelligent

intelligible: able to be understood

17.perquisite / prerequisite

perquisite: gratuity, tip

prerequisite: something that you officially must have or do before you can have or do something else

18.passionate / dispassionate

dispassionate: not influenced or affected by emotions

19.precocity / preciosity

precocity: the phenomenon of a child showing the qualities or abilities of an adult at an unusually early age

preciosity: fastidious refinement

20.apprehend / reprehend / comprehend

apprehend: to notice and understand (something); (of police) to arrest (someone)

reprehend: the voice disapproval of: censure