Giving or conveying a warning; serving to admonish; admonitory. Also (occasionally) with of.

That warns, in senses of the verb.

Prodigious, marvellous; monstrous, extraordinary. Now rare.

That forewarns, in senses of the verb.

Of or relating to admonition; giving or conveying instruction, warning, or a reprimand.

Of the nature of, or conveying, a caution or admonition; warning, admonitory. Frequently in cautionary tale.

Giving or conveying premonition, that is a premonition; serving to warn or notify beforehand.

That suggests or advises caution.

Monitory, warning.

Of the nature of a caution; warning, cautionary.

Of a letter, communiqué, etc.: warning, admonitory. See monitory, n. 1. Obsolete.

That provides or acts as an advance warning.

Originally U.S. Of the nature of an advance warning. Cf. sense C.