
1) Adverse point 2) Bad mark 3) Bad mark in school 4) Bad-conduct mark 5) Black mark 6) Black mark at school 7) Brand 8) Culpability 9) Fault 10) Fault, failing 11) French word used in English 12) Loss of points 13) Mark 14) Mark against 15) Mark against a student 16) Mark for bad conduct 17) Mark for misconduct 
Found on 
https://www.crosswordclues.com/clue/demerit

1) Blackmark 2) Vice 
Found on 
https://www.crosswordclues.com/clue/demerit

• (n.) The state of one who deserves ill. • (n.) That which one merits or deserves, either of good or ill; desert. • (n.) To deserve; -- said in reference to both praise and blame. • (n.) That which deserves blame; ill desert; a fault; a vice; misconduct; -- the opposite of merit. • (v. i.) To deserve praise or blame. &bull...
Found on 
http://thinkexist.com/dictionary/meaning/demerit/
De·mer'it  intransitive verb  To deserve praise or blame. 
Found on 
http://www.encyclo.co.uk/webster/D/32
De·mer'it  noun [ French 
 démérite demerit (in sense 2), Old French 
 demerite demerit (in sense 1), from Latin 
 demerere to deserve well, Late Latin , to deserve well or ill; 
 de- + 
 merere to deserve. See 
 De -, and 
 Merit .] 
 1.  That which one mer...
Found on 
http://www.encyclo.co.uk/webster/D/32
De·mer'it  transitive verb [ Confer French 
 démériter to deserve ill. See 
 Demerit , 
 noun ] 
 1.  To deserve; -- said in reference to both praise and blame. [ Obsolete] « If I have 
 demerited any love or thanks.» 
 Udall. « Exe...
Found on 
http://www.encyclo.co.uk/webster/D/32

[
n] - a mark against a person for misconduct or failure 2. [n] - the quality of being inadequate or falling short of perfection
Found on 
http://www.webdictionary.co.uk/definition.php?query=demerit

demerit 1. A quality or characteristic deserving of blame or censure; a fault.  2. Absence of merit; the quality of being inadequate or falling short of perfection.  3. A mark made against a person's record for a fault or for misconduct.  4. A mark recorded about a person for his or her misconduct; failure, or deficiency; usually given in a school ...
Found on 
http://www.wordinfo.info/words/index/info/view_unit/3580/
fault noun the quality of being inadequate or falling short of perfection; `they discussed the merits and demerits of her novel`; `he knew his own faults much better than she did`
Found on 
https://www.encyclo.co.uk/local/20974

a mark against a person for misconduct or deficiency: If you receive four demerits during a term, you will be expelled from school. · the quality of being censurable or punishable; fault; culpability. · merit or desert.
Found on 
https://www.infoplease.com/dictionary/demerit
  No exact match found.