moralist

[mawr-uh-list, mor-]
noun
  1. a person who teaches or inculcates morality.
  2. a philosopher concerned with the principles of morality.
  3. a person who practices morality.
  4. a person concerned with regulating the morals of others, as by imposing censorship.

Origin of moralist

First recorded in 1615–25; moral + -ist
Related formsmor·al·is·tic, adjectivemor·al·is·ti·cal·ly, adverban·ti·mor·al·ist, noun, adjectivean·ti·mor·al·is·tic, adjectiveo·ver·mor·al·is·tic, adjectivepseu·do·mor·al·is·tic, adjectivequa·si-mor·al·is·tic, adjectivequa·si-mor·al·is·ti·cal·ly, adverbsem·i·mor·al·is·tic, adjectiveun·mor·al·is·tic, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for moralistically

moralist

noun
  1. a person who seeks to regulate the morals of others or to imbue others with a sense of morality
  2. a person who lives in accordance with moral principles
  3. a philosopher who is concerned with casuistic discussions of right action, or who seeks a general characterization of right action, often contrasted with a moral philosopher whose concern is with general philosophical questions about ethics
Derived Formsmoralistic, adjectivemoralistically, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for moralistically

moralist

n.

"moral person," 1620s; "teacher of morals," 1630s, from moral (adj.) + -ist.

Online Etymology Dictionary, © 2010 Douglas Harper