56 entries under fickle topic. ×

2
disloyal(adjective, slack, untrustworthy, unprincipled)
2
unfaithful(adjective, wicked, immoral, deceitful, contrary)
1
faithless(adjective, untrue, untrustworthy, unprincipled)
1
perfidious(untrustworthy, unprincipled, dirty-dealing)
1
traitorous(adjective, untrustworthy, unprincipled, disloyal)
1
treacherous(untrustworthy, unprincipled, dirty-dealing)
1
treasonable(untrustworthy, unprincipled, dirty-dealing)
1
treasonous(adjective, untrustworthy, unprincipled, disloyal)
1
unethical(wicked, immoral, deceitful, untrustworthy)
1
unpatriotic(untrustworthy, unprincipled, dirty-dealing)
0
adulterine(untrustworthy, unprincipled, dirty-dealing)
0
adulterous(untrustworthy, unprincipled, dirty-dealing)
0
amoral(untrustworthy, unprincipled, dirty-dealing)
0
bigamous(untrustworthy, unprincipled)
0
changeful(untrustworthy, unprincipled, dirty-dealing)
0
committing perjury(expression, untrustworthy, unprincipled, dirty-dealing)
0
dirty-dealing(untrustworthy, unprincipled)
0
dirty dealing(expression, untrustworthy, unprincipled, dirty-dealing)
0
dishonest(untrustworthy, unprincipled, dirty-dealing)
0
double-dealing(untrustworthy, unprincipled, dirty-dealing)
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APASmart Define. (2015). undutiful thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/undutiful/thesaurus/synonyms
ChicagoSmart Define. 2015. "undutiful thesaurus" https://smartdefine.org/undutiful/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, undutiful thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/undutiful/thesaurus/synonyms>.
MLASmart Define. "undutiful thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/undutiful/thesaurus/synonyms>