Definition

Adjective: - Describes a material, typically metal or glass, that has not undergone the annealing process. This lack of heat treatment leaves the material in a hard, brittle, and internally stressed state, making it prone to cracking or fracturing under stress or impact.

Usage

The term is primarily technical and used in materials science, metallurgy, and glassworking. It describes the physical state of a material. - It is used attributively (before a noun) or predicatively (after a linking verb). - It is the direct opposite of "annealed."

Examples

• The unannealed glass sheet shattered when it was accidentally bumped.
• These components are unannealed and therefore too brittle for the intended application.
• The failure was due to the use of unannealed steel, which could not withstand the thermal stress.

Advanced Usage

• Figurative Use: While rare and highly specialized, "unannealed" can be used metaphorically to describe a person or idea that is rigid, untempered, or not refined through experience.
  • His opinions remained unannealed by the complexities of the debate.

Variants and Related Words

• Annealed (adj.): The antonym. Describes material that has been heated and cooled slowly to remove internal stresses and increase ductility.
• Annealing (n.): The process itself.
• Tempered (adj.): Often used similarly for metals (especially steel) treated to achieve hardness and toughness, though the process differs from annealing.
• Untempered (adj.): Can be a synonym in some contexts, meaning not hardened or strengthened, or lacking moderation.

Synonyms

• Brittle
• Untempered (in specific contexts)
• Hardened (in the specific sense of being hard but not tough)
• Non-annealed (technical synonym)

Antonyms

• Annealed
• Tempered
• Ductile
• Malleable

Adjective

1. (of metal or glass) not annealed and consequently easily cracked or fractured