Heavy
Part of speech: adjective
Definition: Having great weight. Serious, somber. good. Profound. High, great. armed. louder, more distorted hot and humid doing the specified activity more intensely than most other people. high in fat or protein; difficult to digest. Of great force, power, or intensity; deep or intense; laden to a great extent.
Part of speech: noun
Definition: A villain or bad guy; the one responsible for evil or aggressive acts. A doorman, bouncer or bodyguard.
Part of speech: verb
Definition: To use power and/or wealth to exert influence on, e.g., governments or corporations.
Example sentence: When the burdens of the presidency seem unusually heavy, I always remind myself it could be worse. I could be a mayor.
Arduous
Part of speech: adjective
Definition: Needing or using up much energy; testing powers of endurance.Hard to climb.
Example sentence: The preparatory education of candidates for knighthood was long and arduous.