monster Definition

monster
noun

1. Especially in fables and folklore: any large and frightening imaginary creature.

Thesaurus: chimera, bogeyman, behemoth.
2. A cruel or evil person.
3. Any unusually large thing.
4. old use
A deformed person, animal or plant.
Thesaurus: abnormality, mutant, aberration, freak, sport.

adj

1. Huge; gigantic.

Example: monster portions

Etymology: 14c: from French monstre, from Latin monstrum an evil omen.