| clean(adjective, simple, plain, pure, modest) |
| colloquial(adjective, simple, easy, plain, modest) |
| commodious |
| complacent(adjective, comfortable) |
| congenial(adjective, cool, simple, gentle, plain) |
| convivial(adjective, cool, kind, gentle, mild) |
| cool(adjective, simple, gentle, plain, mild) |
| cornball(adjective, simple, natural, straightforward, naive) |
| country(adjective, pastoral, rural) |
| credulous(simple, easy, real, genuine, unaffected) |
| crude(adjective, simple, natural, straightforward, naive) |
| cushioned |
| cushiony |
| dawg |
| degage |
| democratic(adjective, simple, easy, plain, modest) |
| diplomatic(adjective, cool, kind, gentle, mild) |
| direct(honest, natural, straightforward, genuine, unaffected) |
| discreet(adjective, simple, clean, honest, plain) |
| down(adjective, simple, honest, plain, modest) |