Adjective
Not consecrated; hence, profane; unholy; impious; wicked.
Source: Webster's dictionarySecrets had an immense attraction to him, because he never could keep one, and he enjoyed the sort of unhallowed thrill he experienced when he went and told another animal, after having faithfully promised not to. Kenneth Grahame
There is no part of the means placed in the hands of the Executive which might be used with greater effect for unhallowed purposes than the control of the public press. William Henry Harrison
Away, away, unhallowed ones! Virgil
Let never day nor night unhallowed pass, but still remember what the Lord hath done. William Shakespeare
For by superior energies more strict Affiance in each other faith more firm In their unhallowed principles, the bad Have fairly earned a victory o'er the weak, The vacillating, inconsistent good. William Wordsworth