- viscous a. thick, sticky
viscosity n. - vitiate v. to reduce the value of, debase, spoil
 - vituperate v. to use harsh condemnatory language; abuse or censure severely
 - volatile a. readily changing to a vapor; changeable, fickle
 - voracious a. having an insatiable appetite for an activity or pursuit, ravenous
 - provident a. frugal, looking to the future
 - puerile a. childish, immature
 
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