| Word | Definitions | Synonyms |
|---|---|---|
| frugally | (adverb) in a frugal manner | - |
| fruitfully | (adverb) in a productive way | Synonyms: productively, profitably |
| fruitlessly | (adverb) in an unproductive manner | Synonyms: unproductively, unprofitably |
| frumpily | (adverb) in a dowdy unfashionable manner | Synonyms: dowdily, frumpishly |
| frumpishly | (adverb) in a dowdy unfashionable manner | Synonyms: dowdily, frumpily |