We found 2 dictionaries that define the word stiff-neckedly:

General (2 matching dictionaries)

1. stiff-neckedly: Merriam-Webster
2. stiff-neckedly: Wiktionary

Definitions from Wiktionary (stiff-neckedly) ▸ adverb:  In a stiff-necked manner. ▸ Words similar to stiff-neckedly ▸ Usage examples for stiff-neckedly ▸ Idioms related to stiff-neckedly ▸ Wikipedia articles (New!) ▸ Words that often appear near stiff-neckedly ▸ Rhymes of stiff-neckedly ▸ Invented words related to stiff-neckedly