a.
1.
Anomalous, abnormal, anomalistic, unusual, unconformable, aberrant, exceptional, eccentric, erratic, devious.
2.
Uncertain, unpunctual, capricious, desultory, fitful, variable, changeable.
3.
Immethodical, disordered, disorderly.
4.
Unsymmetrical, uneven.
5.
Disorderly, dissolute, loose, immoral, wild.