below-threshold
Under the minimum
Below-threshold describes something that fails to reach a required minimum level.
The threshold in question varies by context—a stimulus may be below the threshold of perception, a response rate below the threshold for statistical significance, or symptoms below the threshold for clinical diagnosis.
The signal was below-threshold and went undetected.
Often hyphenated when used attributively.
Below threshold of awareness
- subconsciousBelow conscious awareness
- imperceptibleCannot be sensed
- inaudibleCannot be heard
- invisibleCannot be seen
unnoticed · perception · awareness · stimulus · detection · sensation · hearing · vision
Below required quality
- insufficientBelow required quantity
- undetectableImpossible to notice
- borderlineEdge of acceptability
- marginalBarely adequate
subliminal · imperceptible · trace · minimal · negligible · low-level · subclinical · unquantifiable
Below symptom detection level
- asymptomaticDiseased without outward signs
- negativeOpposite of affirmative
- undetectableImpossible to notice
- serumBlood's watery portion
biomarker · screening · diagnostic · pathology · dosage · therapeutic · titration · antibody
Lacking importance or consequence
- nonsignificantLacking statistical importance
- p-valueProbability under null hypothesis
- alphaFirst Greek letter
- confidenceSelf-assurance or trust
criterion · outlier · variance · margin · benchmark · standard · parameter · significance
Failing to conform
- substandardBelow required quality
- failingFlaw in one's nature
- unacceptableNot meeting required standards
- deficientHaving too little
inadequate · minimum · requirement · standard · compliance · inspection · audit · safety
subliminal
Below threshold of awareness
- subconsciousBelow conscious awareness
- imperceptibleCannot be sensed
- inaudibleCannot be heard
invisible · unnoticed · perception · awareness · stimulus · detection · sensation · hearing · vision · pain
substandard
Below required quality
- insufficientBelow required quantity
- undetectableImpossible to notice
- borderlineEdge of acceptability
marginal · subliminal · imperceptible · trace · minimal · negligible · low-level · subclinical · unquantifiable · baseline
subclinical
Below symptom detection level
- asymptomaticDiseased without outward signs
- negativeOpposite of affirmative
- undetectableImpossible to notice
serum · biomarker · screening · diagnostic · pathology · dosage · therapeutic · titration · antibody · antigen
insignificant
Lacking importance or consequence
- nonsignificantLacking statistical importance
- p-valueProbability under null hypothesis
- alphaFirst Greek letter
confidence · criterion · outlier · variance · margin · benchmark · standard · parameter · significance · hypothesis
noncompliant
Failing to conform
- substandardBelow required quality
- failingFlaw in one's nature
- unacceptableNot meeting required standards
deficient · inadequate · minimum · requirement · standard · compliance · inspection · audit · safety · emission
below-thresholddetectable
Capable of being noticed
perceptible · noticeable · visible · triggering · activated
below-thresholdqualifying
Meeting required criteria
sufficient · passing · adequate · compliant · eligible
below-thresholdover the line
Beyond what's acceptable
detectable · perceptible · sufficient · qualifying · statistically significant