excessively, too much, indiscriminately
やたら人を信用するな
Don’t trust people too easily.
— レオン (1994)
そこの住民達は他人の事にやたらと興味を持つ人たちだった。
The residents there were unusually interested in other people’s affairs.
やたらと居るな
There sure are a lot of them around.
— ウエスタン (1968)
やたらと人見知りをした
I was extremely shy around strangers.
— ベルリン・天使の詩 (1987)