| frigid(adjective, temper, cold, negative, detached) |
| good(adjective, pure, unconcerned, flawless, unadulterated) |
| hard(adjective, careless, indifferent, cruel, apathetic) |
| icy(adjective, temper, cold, negative, detached) |
| immovable(adjective, calm, cool, steady, detached) |
| in good taste(expression, idiom, taste) |
| inelaborate(adjective, simple, reasonable, clean, honest) |
| inflexible(adjective, hard, careless, indifferent, cruel) |
| insusceptible(adjective, safe, protected, resistant, invulnerable) |
| intrinsic(adjective, physical, material, true, actual) |
| invulnerable(adjective, safe, unyielding, unbending, protected) |
| iron |
| jejune(simple, plain, innocent, sincere, childlike) |
| lean |
| literal(rational, straightforward, down-to-earth) |
| matter-of-fact(adjective, rational, straightforward, detached, blank) |
| neat(quiet, simple, pure, innocent, subdued) |
| nonchalant(adjective, calm, cool, temper, cold) |
| original(simple, plain, physical, material, innocent) |
| outgoing(adjective, artless) |