ˈgrau̇ndlə̇s rapid -nl- adjective
Etymology: Middle English groundeles bottomless, unfathomable, from Old English grundlēas, from grund ground + -lēas -less — more at ground , -less
: having no ground or foundation : lacking cause or reason for support
groundless fears
a groundless charge of treason
• ground·less·ly adverb
• ground·less·ness noun -es