English Reference

Word

amorphous

Phoneticsamor·phous

US/əˈmɔɹfəs/

UK/ɐmˈɔːfəs/

Definition

adj. having no clear shape or form. It describes things that are messy, unclear, or lack a specific structure.

adj. lacking a distinct shape or form; having no fixed boundaries or structure. Often used to describe abstract concepts like ideas or social groups that are difficult to define.

Examples

“The group has an amorphous shape and no clear leader.”

“The committee's goals were amorphous, making it difficult for the members to agree on a specific plan of action.”

“The amorphous nature of the early universe prevented the formation of distinct structures until gravity began to pull matter into the first stars and galaxies.”

Examples

simple

“The group has an amorphous shape and no clear leader.”

contextual

“The committee's goals were amorphous, making it difficult for the members to agree on a specific plan of action.”

complex

“The amorphous nature of the early universe prevented the formation of distinct structures until gravity began to pull matter into the first stars and galaxies.”

Real-World Examples

“But amorphous materials such as polymer glasses are structurally disordered.”
Phys.org · 14 Sept 2026

Etymology

From Ancient Greek ἄμορφος (ámorphos, “without form, shapeless, deformed”) (itself from ἀ- (a-, “without”) + μορφή (morphḗ, “form”) + -ous. By surface analysis, a- + -morphous.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Domain

Physics

This entry

Level
C1 · Advanced
Frequency
Occasional
Updated

Scan code

englishreference.com/q/amorphous

English Reference