
1) Artful 2) Artificial 3) Bootlicking 4) Buttery 5) Completely 6) Counterfeit 7) Deceitful 8) Dishonest 9) Disingenuous 10) Dissembling 11) Dissimulating 12) Dissimulative 13) Empty 14) Fake 15) False 16) Fawning 17) Feigned 18) Fulsome 19) Hypocritical 20) Indirect 21) Lying 22) Obsequious 23) Oleaginous
Found on
https://www.crosswordclues.com/clue/insincere

1) Artful 2) Bootlicking 3) Buttery 4) Counterfeit 5) Deceitful 6) Dishonest 7) Dishonorable 8) Disingenuous 9) Dissembling 10) Dissimulating 11) Dissimulative 12) Duplicitous 13) False 14) False, hypocritical 15) Fawning 16) Feigned 17) Fulsome 18) Gilded 19) Hollow 20) Hollow grains in cereal bars
Found on
https://www.crosswordclues.com/clue/insincere

• (a.) Not being in truth what one appears to be; not sincere; dissembling; hypocritical; disingenuous; deceitful; false; -- said of persons; also of speech, thought; etc.; as, insincere declarations. • (a.) Disappointing; imperfect; unsound.
Found on
http://thinkexist.com/dictionary/meaning/insincere/
In`sin·cere' adjective [ Latin
insincerus . See
In- not, and
Sincere .]
1. Not being in truth what one appears to be; not sincere; dissembling; hypocritical; disingenuous; deceitful; false; -- said of persons; also of speech, thought; etc.; as,
insincere declaration...
Found on
http://www.encyclo.co.uk/webster/I/68

[
adj] - lacking sincerity
Found on
http://www.webdictionary.co.uk/definition.php?query=insincere

insincere 1. Lacking sincerity; not honest in the expression of actual feelings; hypocritical. 2. Not genuine and not reflecting true feelings.
Found on
http://www.wordinfo.info/words/index/info/view_unit/3846/
adjective lacking sincerity; `a charming but thoroughly insincere woman`; `their praise was extravagant and insincere`
Found on
https://www.encyclo.co.uk/local/20974

not sincere; not honest in the expression of actual feeling; hypocritical.
Found on
https://www.infoplease.com/dictionary/insincere
No exact match found.