From un- + starchy.
unstarchy (comparative more unstarchy, superlative most unstarchy)
- Informal, casual.
2019, Andy Maslen, Write to Sell: The Ultimate Guide to Copywriting, Singapore: Marshall Cavendish, →ISBN, →OCLC, →ISBN:[…] copywriting is, or should be, conversational and unstarchy.
1985, Alastair Burnet, In person, the Prince and Princess of Wales, Toronto: Doubleday Canada, →ISBN, →OCLC, page 96, →ISBN:[…] their visit seemed fresh, unstarchy, even informal, a visit that everyone could enjoy.
- Not containing starch. (of food)
1996, J. H. Tilden, Diseases of women and easy childbirth, Kila, Montana: Kessinger Publishing, →ISBN, →OCLC, page 181, →ISBN:Two cooked unstarchy vegetables, and a raw vegetable salad may be had at every dinner.