heatless

Meanings

1. 1
   adj

   without warmth or heat; cold

   By late autumn the pale, heatless sun barely warmed the frozen field.

2. 2
   adj

   producing little or no heat

   The museum uses heatless LED lighting to protect fragile manuscripts.

Formed from heat + -less, the suffix meaning 'without.' The word can describe something deprived of warmth or a process, light source, or device that produces no appreciable heat.

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