baseless

Meanings

1. 1
   adj

   not supported by evidence, facts, or sound reasons

   The inquiry found that the allegations were entirely baseless.

2. 2
   adj

   having no physical base or foundation

   The sculpture appears baseless, suspended by nearly invisible wires.

From base + -less. The physical meaning "without a foundation" gave rise to the common figurative sense "without factual or logical support."

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