plain sailing
plain·sai·ling
noun
1.
- “after we solved that problem the rest was plain sailing”
Origin
From plain (adjective) + sailing. Sense 2 of plain sailing (“something that is easy, simple, or straightforward”, noun) is attested slightly later than the adjective, and so could have been derived from it.
Related words
Broader terms
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.