Translation

当たり障りのない / 無難な / 刺激のない

Meaning

Anodyne most often describes a statement, style, joke, or policy that is harmless, bland, and unlikely to offend. The trap is that it can sound mildly critical: safe, but dull or empty.

Examples

• 候補者は無難な発言だけを繰り返した。
  The candidate repeated only anodyne remarks.
• その広告は安全だったが、退屈なほど当たり障りがなかった。
  The advertisement was safe but painfully anodyne.