| fast(adjective, calm, strong, secure, firm) |
| fated(adjective, even, rigid, inflexible, reliable) |
| fateful(adjective, even, rigid, inflexible, reliable) |
| firm(adjective, calm, strong, secure, solid) |
| fixed(adjective, dull, firm, solid, steady) |
| fixed resistant(expression, calm, strong, solid, substantial) |
| fluent(adjective, quiet, soft, gentle, flat) |
| fluid(adjective, quiet, soft, gentle, flat) |
| flush(adjective, calm, quiet, smooth, soft) |
| forgiving(adjective, calm, kind, smooth, soft) |
| free from strife(expression, idiom, calm, quiet, friendly) |
| frictionless(adjective, quiet, soft, gentle, flat) |
| friendly(calm, quiet, serene) |
| glassy(adjective, quiet, soft, gentle, flat) |
| glossy(adjective, quiet, soft, gentle, flat) |
| good-humored(adjective, calm, kind, smooth, soft) |
| habitual(adjective, dull, steady, stable, regular) |
| hairless(adjective, quiet, soft, gentle, flat) |
| halcyon(adjective, calm, quiet, cool, smooth) |
| harmonious(adjective, calm, quiet, cool, smooth) |