infelicitous

Infelicitous describes something inappropriate, unfortunate, or poorly suited to the occasion.

An infelicitous remark is one that lands badly—awkward, ill-timed, or just wrong for the context.

His infelicitous choice of words at the funeral offended several mourners.

The word often applies to language or phrasing that fails to achieve its intended effect, suggesting a lack of grace or tact rather than outright hostility.