This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

adj. Having no distinguishing character or quality

adj. Destitute of any distinguishing quality; without character or force.

Lacking a definite or positive character; commonplace; uninteresting; weak.

Unrecorded, as in history.

adj. lacking distinct or individual characteristics; dull and uninteresting

"My brother used to have a job that paid him to go spend days in characterless chain hotels in Singapore and Paris which of course is very different from being paid to spend days in Singapore and Paris themselves and he traded that job in for one that pays him to stay at home in Connecticut, but at least he gets to see Connecticut."

ordinary   

hard-visaged    lustreless    craven-hearted    plain-looking    sheet-covered