rootless; without roots; groundless
Describes something lacking a foundation, basis, or origin; often used figuratively for people without a stable home or for unfounded rumors.
He travels the world like a rootless wanderer.
That rumor is groundless.
duckweed · rootless person; wanderer
Standard kanji spelling.
Variant spelling with okurigana.
Compound of 根 (root) + 無し (without). The exact historical derivation is uncertain, but the meaning is transparent.