Guess by Definition
A deep and bottomless pit (n.)
abyss
A distinct time period, a new era, a new century, age, beginning
Illogical, insane, mad, absurd, unreasonable
rational
stricture
A limitation or restriction; a criticism
negligent
negligence
Pale, lacking in color; weak and lifeless (adj.)
Cease fire, peace treaty, agreement, bury the hatchet
armistice
Insignificant, lowly, small, inconsequential
crucial
inert
Lifeless, unable to move or act; slow, inactive
rational
rationality
A thin outer layer, a surface appearance or decoration (n.) OR to cover with a thin layer (v.)
veneer
Increase, augment, fill out, supplement
amplify
Soothe, please, delight
exasperate
befall
To happen, occur; happen to
embody
embodiment
An impressive piece of work, especially a musical composition or other work of art (n.)
opus
Peddler, hawker, dealer
vendor
Reunite, reconcile
estrange
mercenary
Acting or working for self-gain only
A hired soldier, a soldier of fortune
crucial
cruciality
Forgetfulness, disregard; a state of being forgotten; an amnesty, general pardon (n.)
Efface, erase
obliterate
Cream of the crop (the finest)
dregs
(medicine - related) stricture
A narrowing of passage in the body
inert
inertion