[f. TRUANT sb. + -ISM.] The practice of a truant; truancy.
1812. J. J. Henry, Camp. agst. Quebec, 13. His own education, though made by his truantisms an incorrect one.
1855. The Jeffersonian, 11 Oct., 1/5. From disobedience and truantism, he goes on to dissipation and crime.
1875. G. Dawson, Shaks. Lect. (1888), 117. He neglected his studies with that persistent truantism some great men have been guilty of.