I. adjective 1. without a clearly defined shape or form • an amorphous, characterless conurbation.
2. lacking a clear structure or focus • an amorphous and leaderless legislature.
[Chemistry] (of a solid) not crystalline, or not apparently crystalline.
• an amorphous polymer.
II. derivatives 1. amorphously adverb
2. amorphousness noun
– origin mid 18th cent.: from modern Latin amorphus, from Greek amorphos ‘shapeless’ (from a- ‘without’ + morphē ‘form’) + -ous.