Lack of solid substance and strength.

Roget 4: unsubstantiality^†, insubstantiality; nothingness, nihility^†; no degree, no part, no quantity, no thing.    nothing, naught, nil, nullity, zero, cipher, no one, nobody; never a one, ne'er a one [Contr.]; no such thing, none in the world; nothing whatever, nothing at all, nothing on earth; not a particle etc. (smallness) 32; all talk, moonshine, stuff and nonsense; matter of no importance, matter of no consequence.    thing of naught, man of straw, John Doe and Richard Roe, faggot voter; nominis umbra [Lat.], nonentity; flash in the pan, vox et praeterea nihil [Lat.].    shadow; phantom etc. (fallacy of vision) 443; dream etc. (imagination) 515; ignis fatuus [Lat.] etc. (luminary) 423; such stuff as dreams are made of" [Tempest]; air, thin air, vapor; bubble etc. 353; baseless fabric of a vision" [Tempest]; mockery.    hollowness, blank; void etc. (absence) 187.    inanity, fool's paradise.    ... show more

Lacking substance or reality.

Polish: niemerytoryczność