old-maidish

old maid +‎ -ish

old-maidish (comparative more old-maidish, superlative most old-maidish)

1. Like an old maid; prim; precise; particular.
   • 1953, Ian Fleming, chapter 8, in Casino Royale, page 48:

     ‘You must forgive me,’ he said. ‘I take a ridiculous pleasure in what I eat and drink. It comes partly from being a bachelor, but mostly from a habit of taking a lot of trouble over details. It’s very pernickety and old-maidish really, but then when I’m working I generally have to eat my meals alone and it makes them more interesting when one takes trouble.’

• “old-maidish”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.