preachy

Adjective

 * 1) Tending toward excessive moralization.
 * My old fussbudget aunt had a very preachy manner and would prattle on about the dangers of alcohol and other vices.

Synonyms

 * (tending toward excessive moralization): didactic, moralizing, pious, sanctimonious, sermonizing

Antonyms

 * (tending toward excessive moralization): impious, irreverent, tolerant, laissez faire