当たらず障らず

あたらずさわらず【当たらず障らず】

●当たらず障らずの態度を取る avoid committing oneself; take a safe line; remain uncommitted

・彼は当たらず障らずの返事をした. 〔どっちつかずの〕 He gave a noncommittal [safe, diplomatic, careful] reply. | He replied without committing himself. | 〔さしさわりのない〕 He gave an answer that wouldn't offend anybody [《口》 that wouldn't tread on any toes].