Insincere (3-5)
'insincere' is the definition.
(similar in meaning)
This is all the clue.
(Other definitions for two-faced that I've seen before include "Double-dealing, like Janus?" , "Deceitful, with double visage" , "Duplicitous" , "Treacherous" , "Hypocritical (like clock in tower?)" .)
'insincere' is the definition.
(associated in meaning)
This is all the clue.
(Other definitions for disingenuous that I've seen before include "Insincere" , "Not sincere" .)
'insincere' is the definition.
(associated in meaning)
This is the entire clue.
(Other definitions for dishonest that I've seen before include "Deceitful - hedonists (anag)" , "Insincere" , "Bent" , "Not trustworthy" , "Mendacious like hedonists" .)