多事 is read as たじ (taji) and means eventfulness.
たじ
taji
たじゅうじこ
multi-vehicle accident
たじたたん
eventfulness
ないがいたじ
things being very eventful at home and abroad
じこたはつちてん
accident-prone zone
じこたはつ
accidents frequent
たしょう
amount
ただい
great (quantity, amount, etc.)
たぶん
probably
おおい
frequent
おおめ
somewhat larger (amount)
たよう
busyness
た
multi-