1. Not done or made or performed with purpose or intent

Antonym: designed

• terza rima
• terzetto
• TESL
• tesla
• Tesla coil
• TESOL
• tessella
• tessellate
• tessellated
• tessellation
• tessera
• tesseract
• Tessin
• tessitura
• test
• test ban
• test bed
• test case
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• test drive
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• test match