Definitions

1. adjective

slightly old-fashioned but in a charming or attractive way

“She had a modernish kitchen with sleek appliances and bright colors.”

2. adverb

in a slightly old-fashioned way

“He spoke with a modernish accent, but it was not entirely clear where he was from.”

3. noun

a style or manner that is slightly old-fashioned

“The modernish decor of the old mansion was still quite impressive.”