a. [f. CAUTION sb. + -LESS.] Without caution.

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1792–7.  Geddes, Judges, xviii. 7 (R.). The people … dwelled careless, quiet and cautionless.

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1859.  C. M. Smith, in Chamb. Jrnl., XI. 315/2. Playing a wild game, in a reckless, cautionless way.

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