newcomer; new arrival
Refers to a person who has recently arrived in a place, group, or organization. Somewhat formal and less common in casual speech than 新入り or 新人.
We warmly welcomed the newcomer.
Newcomers are rare in this town.
Compound of 新 (new) + 来 (come) + 者 (person). The reading しんらいしゃ follows standard on'yomi patterns.