Without gratitude; ungrateful, or lacking a grate (an iron grid for holding fire).
From 'grateful' or 'grate' plus the negative suffix '-less.' The word can mean either without thankfulness or without a physical grate depending on context.
This word nicely shows how '-less' works as a negation suffix in English, turning something into its opposite—but it's also a reminder that before efficient metal stoves, having a proper grate was genuinely important to surviving winter.
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