conscientious

[kon-shee-en-shuhs, kon-see-]

See more synonyms for conscientious on Thesaurus.com

adjective

governed by conscience; controlled by or done according to one's inner sense of what is right; principled: She's a conscientious judge, who does not let personal prejudices influence her decisions.
careful and painstaking; particular; meticulous; scrupulous: conscientious application to the work at hand.

Origin of conscientious

1605–15; < Medieval Latin conscientiōsus, equivalent to Latin conscienti(a) conscience + -ōsus -ous

Related formscon·sci·en·tious·ly, adverbcon·sci·en·tious·ness, nounhy·per·con·sci·en·tious, adjectivehy·per·con·sci·en·tious·ly, adverbhy·per·con·sci·en·tious·ness, nouno·ver·con·sci·en·tious, adjectiveo·ver·con·sci·en·tious·ly, adverbun·con·sci·en·tious, adjectiveun·con·sci·en·tious·ly, adverbun·con·sci·en·tious·ness, noun

Synonyms for conscientious

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1. just, upright, honest, faithful, devoted, dedicated. 2. See painstaking.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for unconscientious

selfish, petty, underhanded, deceitful, ruthless, illegal, shady, dishonest, crooked, corrupt, venal, unethical, crafty, shameless, arrant, base, degraded, degrading, disgraceful, dishonorable

Examples from the Web for unconscientious

Historical Examples of unconscientious

Often, unconscientious pleasure-seekers roam the roads in their auto.
Sex
Henry Stanton
That woman ought not to be at large—so rich and good-looking and unconscientious!
A Cathedral Courtship
Kate Douglas Wiggin
Yet it is one of the most unconscientious diaries ever written.
Sophy of Kravonia
Anthony Hope
I trust that you have given me credit, Mr. Gammon, for offering no vexatious or unconscientious obstacles.
Ten Thousand a-Year (Vol. 2)
Samuel Warren
Nay, but God forbid that any unconscientious advantage should be taken on my behalf!
Ten Thousand a-Year. Volume 1.
Samuel Warren

British Dictionary definitions for unconscientious

conscientious

adjective

involving or taking great care; painstaking; diligent
governed by or done according to conscience

Derived Formsconscientiously, adverbconscientiousness, noun

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 unconscientious

conscientious

adj.

1610s, from Middle French conscientieux (16c.; Modern French consciencieux), from Medieval Latin conscientiosus, from conscientia (see conscience). Related: Conscientiously; conscientiousness.