| idiosyncrasy(noun, originality, eccentricity, peculiarity, nonconformity) |
| incongruity |
| inconstancy(noun, frivolity, lightness, unpredictability, flightiness) |
| instability(noun, frivolity, lightness, unpredictability, flightiness) |
| irregularity(noun, peculiarity, nonconformity, aberration, abnormality) |
| irresponsibility(noun, frivolity, lightness, unpredictability, flightiness) |
| kink(noun, irregularity, peculiarity, aberration, abnormality) |
| levity(noun, frivolity, lightness, unpredictability, flightiness) |
| lightness(noun, frivolity, unpredictability, flightiness, waywardness) |
| mercurialness(noun, frivolity, lightness, unpredictability, flightiness) |
| moodiness |
| nonconformity(noun, irregularity, peculiarity, aberration, abnormality) |
| oddity(noun, originality, eccentricity, peculiarity, nonconformity) |
| oddness(noun, irregularity, peculiarity, aberration, abnormality) |
| outlandishness(noun, irregularity, peculiarity, aberration, abnormality) |
| peculiarity(noun, originality, eccentricity, nonconformity, unusualness) |
| petulance |
| queerness(noun, irregularity, peculiarity, aberration, abnormality) |
| quirk(noun, irregularity, peculiarity, aberration, abnormality) |
| quirkiness(noun, originality, irregularity, eccentricity, nonconformity) |