Synonyms of the word 
UNFEIGNEDLY → SINCERELY - TRULY
unfeignedly
- adv. In an unfeigned manner; genuinely.
sincerely
- adv. In a sincere or earnest manner; honestly.
- adv. (US) A conventional formula for ending a letter, used when the salutation addresses the person for whom…
truly
- adv. In accordance with the facts; truthfully, accurately.
- adv. Honestly, genuinely, in fact, really.
- adv. Very.
If you are interested in words, visit the following sites :
- wiktionary.org/unfeignedly For complete definition of a word
- 1word.ws/unfeignedly to play with words, suffixs, prefixs, etc.