Synonyms of insubstantiality

1 Syllable
fault, flu
2 Syllables
frailness, frailty, unhealth, ailing, failing, decay, ailment, defect, weakness
3 Syllables
unwellness, affliction, malady, unsoundness, sickliness, disease, shortcoming, puniness, weakliness, shoddiness, flimsiness, feebleness, malaise, disorder
4 Syllables
diseasedness, fragility, imperfection, unhealthiness, debility, delicacy, fragileness, confinement, deficiency
5 Syllables
debilitation, decrepitude, indisposition, delicateness
6 Syllables
vulnerability, unsubstantiality