The most common and most likely answer to this crossword clue is the 8 letter word IMEANTIT which also is the latest solution we found used in New York Times in 2010.
Affirmation of seriousness crossword clue answers
Here's a list of possible crossword answers ranked by the most likely to least likely.
| Answer | Likelyness | Letters | 
|---|---|---|
| IMEANTIT | 100 % | 8 | 
Words with a meaning similar to the clue: Affirmation of seriousness
These words may or may not be a possible solution to this crosswords clue.- asseveration
 - needy
 - nerdy
 - protest
 - protestation
 - protesting
 - recede
 - swear
 - thesis
 - threap
 - emphasis
 - establish
 
Crossword Answer definitions
More crossword clues leading to the same solutions
Here's a few more crossword clues - all leading to the identical solution