unsubstantiality Synonyms

Strongest:

not substantial, lacking substance, firmness, or strength

The unsubstantiality of her dreams left her feeling empty and adrift.
The unsubstantiality of the ghost's presence made it hard to believe it was real.
The unsubstantiality of the evidence made it impossible to convict the suspect.
The unsubstantiality of her promises left me feeling betrayed.
The unsubstantiality of the world made him question his own existence.
The unsubstantiality of their relationship made her wonder if it was worth pursuing.
The unsubstantiality of his hopes and dreams made him feel hopeless.
The unsubstantiality of her threats made them meaningless.
The unsubstantiality of his arguments made them easy to dismiss.
The unsubstantiality of the world made it feel like a mere shadow of reality.

not substantial, lacking substance, firmness, or strength

instability, insecurity,unsoundness, insubstantiality,unsteadiness, precariousness, unstableness, shakiness,weakness

reliability, firmness, durability,strength, soundness, stability, sturdiness, solidity,dependability,solidness

The unsubstantiality of her dreams left her feeling empty and adrift.

The unsubstantiality of the ghost's presence made it hard to believe it was real.

The unsubstantiality of the evidence made it impossible to convict the suspect.

The unsubstantiality of her promises left me feeling betrayed.