Use "incertitude" in a sentence

1. to say, that the incertitude about his health status has deterred a substantial total of people

2. Upon incertitude, upon unlikelihood

3. Because of his fluctuating incertitude as to whether this observation had or had

4. He affirmed his significance as a conscious rational animal proceeding syllogistically from the known to the unknown and a conscious rational reagent between a micro and a macrocosm ineluctably constructed upon the incertitude of the void

5. unknown to the known through the incertitude of the void

6. By what reflections did he, a conscious reactor against the void of incertitude,

7. These are in part included in the present essay, and if they should have a tendency to incite attention to the reptilia of the United States, at present in a state of confusion and incertitude, some portion of benefit will be rendered to the great cause of science