Groundless
[ground-lis] /ˈgraʊnd lɪs/
adjective
1.
without rational basis:
groundless fears.
/ˈɡraʊndlɪs/
adjective
1.
without reason or justification: his suspicions were groundless
adj.
Old English grundleas “bottomless, unfathomable, vast;” see ground (n.) + -less. Figurative sense of “unfathomable” is from early 14c. Related: Groundlessly; groundlessness.
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