Answer: liminal

AnswerCrossword Clue
LIMINALAt the threshold.
LIMINALResembling a threshold.
LIMINALAt the threshhold.
LIMINALBarely perceptible
LIMINALIn-between
liminalrelating to the point beyond which a sensation becomes too faint to be experienced.
liminalpertaining to the limen
liminalof, pertaining to, or situated at the limen