“Hearing this, Scipio strove eagerly to embrace his mother, but thrice the unsubstantial ghost eluded his grasp.”

“Upon hearing his speech, the crowd dispersed, unconvinced by his unsubstantial tone and manner of speaking.”

“Halliburton possessed what some critics called a slight and unsubstantial physique, compared with Hemingway's sturdier and more muscular frame.”