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Feasible
Practical, possible
Disparage
Bellitle, downgrade
Precocious
having developed certain abilities or inclinations at an earlier age
Perverse
Unreasonable, Awkward
Voluble
talking fluently, readily
Egregious
Consternation
Dismay, Anxiety
Deride
Ridicule, Mock
Chagrin
annoyance or distress at having failed or been humiliated:
Eschew
deliberately avoid using; abstain from:
Obsolescence
the process of becoming obsolete or outdated and no longer used:
Curtail
Reduce, decrease
Surreptitious
Actions or behavior done secretly
reprehensible
disgraceful, discreditable
Propitious
favourable, auspicious, promising
Cognizant
having knowledge or awareness
Implacable
unable to be stopped; relentless
Indigent
poor, needy
Exacerbate
Aggravate, worsen
Paroxysm
a sudden attack or outburst of a particular emotion or activity:
Incontrovertible
not able to be denied or disputed
Incredulous
disbelieving, unbelieving
Inchoate
rudimentary, undeveloped
Ulterior motive
Secret reason
Premise
proposition, assumption, hypothesis