characteristic, attribute

QUALITY
WordClue
TRAITattribute, streak
TYPICALcharacteristic, specific
ACCIDENTattribute, chance
HALLMARKdistinguishing characteristic
SPECIFICdistinguishing attribute or quality
TENDENCYcharacteristic, mannerism
ATTRIBUTEcharacteristic or quality of a thing
CHARACTERtrait, attribute
EXCLUSIVEcharacteristic
SIGNATUREcharacteristic, exclusive
TRADEMARKcharacteristic
TRAITcharacteristic
SIGNATUREcharacteristic, exclusive