| improv(adjective, simple, easy, plain, modest) |
| impulsive(simple, easy, real, genuine, unaffected) |
| inartificial(simple, easy, real, genuine, unaffected) |
| inconspicuous(adjective, simple, easy, plain, modest) |
| ingenuous(adjective, open, simple, easy, natural) |
| innocent(adjective, open, smooth, simple, easy) |
| instinctive(simple, easy, real, unaffected) |
| irregular |
| jolly(adjective, cool, kind, gentle, mild) |
| jovial(adjective, cool, kind, gentle, mild) |
| laid-back(adjective, cool, simple, easy, honest) |
| laid back(expression, adjective, simple, plain, straightforward) |
| lived-in |
| low-pressure(cool, simple, relaxed, familiar, straightforward) |
| lowly(adjective, simple, clean, honest, plain) |
| luxurious |
| mellow(cool, kind, simple, gentle, relaxed) |
| mere(adjective, simple, clean, plain, pure) |
| mild-mannered(adjective, cool, kind, gentle, mild) |
| mixed(adjective, simple, easy, plain, modest) |