Gargantuan vs. Leviathan — What's the Difference?

Of immense size, extent, or quantity.

Leviathan (; לִוְיָתָן, Līvəyāṯān) is a creature with the form of a sea serpent in Judaism. It is referenced in several books of the Hebrew Bible, including Psalms, the Book of Job, the Book of Isaiah, and the Book of Amos; it is also mentioned in the apocryphal Book of Enoch.

Of exceedingly great scope or nature

Something unusually large of its kind, especially a ship.

Huge; immense; tremendous.

A very large animal, especially a whale.

(obsolete) Of the giant Gargantua or his appetite.

A monstrous sea creature mentioned in the Bible.

Characteristic of Gargantua, a gigantic, wonderful personage; enormous; prodigious; inordinate.

A vast sea monster of tremendous strength, described as the most powerful and dangerous creature in the ocean.

Of great mass; huge and bulky;

(figuratively) Something monstrously large or mighty in size, strength, wealth, etc.

The political state, especially a domineering and totalitarian one as theorized by Thomas Hobbes.

Very large; gargantuan.

An aquatic animal, described in the book of Job, ch. xli., and mentioned in other passages of Scripture.

The whale, or a great whale.

The largest or most massive thing of its kind;

Monstrous sea creature symbolizing evil in the Old Testament