foundationless
Lacking any ground
Foundationless means lacking a foundation—without the base or groundwork that would normally support something.
A foundationless building has no structural footing.
More often the word appears figuratively: a foundationless argument rests on nothing solid, a foundationless accusation has no evidence behind it.
His confidence seemed foundationless given the circumstances.
Lacking factual support
- unsubstantiatedWithout supporting evidence
- unsupportedLacking backing or proof
- unjustifiedLacking adequate reason
- unwarrantedWithout adequate justification
specious · spurious · fallacious · conjectural · hypothetical · assumptive · presumptive · fabricated
groundless
Lacking factual support
- unsubstantiatedWithout supporting evidence
- unsupportedLacking backing or proof
- unjustifiedLacking adequate reason
unwarranted · specious · spurious · fallacious · conjectural · hypothetical · assumptive · presumptive · fabricated · fictitious
shaky
Trembling or unstable
- wobblyTending to teeter
- unsteadyLacking balance or stability
- teeteringUnstably balanced, nearly falling
tottering · rickety · precarious · insecure · tenuous · fragile · flimsy · tremulous · swaying · rocky
abandoned
Left behind completely
orphaned · unaided · unassisted · unbacked · unendorsed · helpless · stranded · forsaken · neglected · left hanging
foundationlesswell-founded
Having sound basis
well-grounded · substantiated · justified · grounded · reasoned
foundationlesswell-established
Firmly in place, enduring
established · rooted · grounded · legitimate · genuine
found, foundation, fundamental, founding, foundations, unfounded, fundamentally, confounded, foundational