adj. monstrous, monster-like; frighteningly hideous; horribly absurd; fiendish; extremely large

nm. monster; giant; freak

(n.) = monster ; beast ; leviathan.
Ex: The article is entitled 'Users' experiences with qualitative data analysis software: neither monster nor muse'.
Ex: In Little Gidding T.S. Eliot gives us some lines that express what I mean not just by saying it but by demonstrating it too: Last season's fruit is eaten And the fullfed beast shall kick the empty pail.
Ex: In his most famous work, the Leviathan, Hobbes famously argued that life in the state of nature is 'solitary, poor, nasty, brutish, and short'.
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* monstruo marino = sea monster.

(n.) = mean machine.
Nota: Generalmente usado en sentido positivo para indicar una persona o cosa muy eficaz.
Ex: A 500-year-old sketch by Leonardo da Vinci was recently discovered -- of a mean machine that looked just like a modern bike!.