| fluency(ease, familiarity, casualness) |
| informality(noun, ease, familiarity, casualness) |
| insouciance(ease, familiarity, casualness) |
| knack(ease, familiarity, casualness) |
| lack of formality(expression, idiom, ease, familiarity, casualness) |
| liberty(ease, familiarity, casualness) |
| naturalness(ease, familiarity, casualness) |
| nonchalance(ease, familiarity, casualness) |
| poise(ease, familiarity, casualness) |
| pushover(ease, familiarity, casualness) |
| quickness(ease, familiarity, casualness) |
| readiness(ease, familiarity, casualness) |
| relaxedness(ease, familiarity, casualness) |
| setup(ease, familiarity, casualness) |
| simplicity(ease, familiarity, casualness) |
| skillfulness(ease, familiarity, casualness) |
| smooth sailing(expression, ease, familiarity, casualness) |
| smoothness(ease, familiarity, casualness) |
| snap(ease, familiarity, casualness) |
| spontaneity(ease, familiarity, casualness) |