bottomless pit
abyss
to lure or entice by deception
decoy
daringly, often recklessly adventurous
audacious
to firmly plant or establish
engraft
choice of one of two options
alternative
allowable
permissible
not aggravating but not interesting
bland
possessing a friendly manner or temperament
genial
to start
commence
persistent in harshness or severity
relentless
facial expression
countenance
incapable of change
invariable
planned or accomplished usually by many people
concerted
to keep something desirable visible but out of reach
tantalize
deteriorate
exceptionally steep
precipitous
to judge or conclude based on guesswork
conjecture
watch kept while others are normally sleeping
vigil
to originate or send out-from a source
emanate
watchful for danger or error
vigilant