What is another word for unsubstantial?

Need synonyms for unsubstantial? Here's a list of similar words from our thesaurus that you can use instead.

Adjective
Not having a material or physical form
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“Hearing this, Scipio strove eagerly to embrace his mother, but thrice the unsubstantial ghost eluded his grasp.”
Adjective
Weak, feeble, or lacking in strength
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“Upon hearing his speech, the crowd dispersed, unconvinced by his unsubstantial tone and manner of speaking.”
Adjective
Lacking physical strength, weight or firmness
“Halliburton possessed what some critics called a slight and unsubstantial physique, compared with Hemingway's sturdier and more muscular frame.”
Adjective
Having no basis in reality
“We must distinguish an external object of nature from some unsubstantial figment of fantasy or hallucination that has little semblance of reality.”
Adjective
Unsound, not backed by facts
“In the dawning light, the unsubstantial theory may melt away, but the ultimate facts will remain.”
Adjective
Flimsy, or made of flimsy material
“The unsubstantial fabric of her dress left nothing to the imagination.”
Adjective
Having a sense of vagueness, insubstantiality, or incongruousness
Adjective
Not likely to be true or to happen
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Adjective
Too small or unimportant to be worth consideration
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Adjective
(of a mixture or effect) Delicately complex and understated
Adjective
Subject to dispute or questions
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Adjective
Dreamy and unaware of one's surroundings, for example because one is in love
Adjective
Pale
Adjective
Based on abstract reasoning
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Adjective
Light and entertaining but of little substance
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Adjective
Small and weak
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Adjective
Useless or having no chance of success
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Determiner
Emphasizing insignificance
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