Sentence:  [W]e ſhould no longer behold the ſad ſpectacle of ſo many miſerable captives of our ſpecies ſtretching forth their hands, and bending at the cloſe of their exiſtence, under the tyranny of imperious and <WSD>inexorable</WSD> habits, which gird them and carry them whither they would not. 
Meaning of the word marked with <WSD> tags:  Impossible to prevent or stop; inevitable. (from mid 16th c.)