We have put together a list of words that are similar to FIDELITY.

5 Alternative Words Similar to fidelity

1 Faithfulness Noun      Synonym Words Like Faithfulness
2 Quality Noun      Synonym Words Like Quality
3 Loyalty Noun      Synonym Words Like Loyalty
4 Veracity Noun      Synonym Words Like Veracity
5 Dedication Noun      Hyponym Words Like Dedication

10 definitions of fidelity

1 Adherence to a person or party to which one is bound; loyalty.
2 Adherence to the marriage contract.
3 Adherence to truth; veracity; honesty.
4 accuracy with which an electronic system reproduces the sound or image of its input signal
5 the quality of being faithful
6 Faithfulness to obligations, duties, or observances.
7 Exact correspondence with fact or with a given quality, condition, or event; accuracy.
8 The degree to which an electronic system accurately reproduces the sound or image of its input signal.
9 Good faith; careful and exact observance of duty or performance of obligations: as, conjugal or official fidelity.
10 Faithful devotion or submission; unswerving adherence; close or exact conformity; fealty; allegiance: as, fidelity to a husband or wife, or to a trust; fidelity to one's principles or to instructions; the dog is the type of fidelity.
We get our data from many different dictionaries across the web:
Wordnik, Wiktionary, Century, American Heritage, Gcide