1 : (of a surface or shape); not level or flat or symmetrical; "walking was difficult on the irregular cobblestoned surface"
2 : deviating from normal expectations; somewhat odd, strange, or abnormal; "these days large families are atypical"; "atypical clinical findings"; "atypical pneumonia"; "highly irregular behavior"
adjectif
1 : (used of the military) not belonging to or engaged in by regular army forces
