Words from
pervasive
    (especially of an unwelcome influence or physical effect) spreading widely throughout an area or a group of people.
    
    Source: My old website
    
    insidious
    proceeding in a gradual, subtle way, but with harmful effects.
    
    Source: My old website
    
    impudent
    not showing due respect for another person; impertinent.
    
    Source: My old website
    
    earnest
    resulting from or showing sincere and intense conviction.
    
    Source: My old website
    
    impend
    be about to happen.
    
    Source: My old website
    
    vernacular
    the language or dialect spoken by the ordinary people in a particular country or region.
    
    Source: My old website
    
    scrupulous
    (of a person or process) diligent, thorough, and extremely attentive to details.
    
    Source: My old website