adjective

gratuitous

Done or included without a good reason.

Kicking apart her sandcastle is an act of gratuitous destruction.

A man deliberately kicks apart a woman's sandcastle while she peacefully works on it, depicting gratuitous, uncalled-for destruction rather than an accident or a necessary action.
Etymology

The older meaning was freely given or without payment. The sense shifted from requiring no return to having no sufficient justification, as with an unnecessary insult or detail.

In context

TED0:41
a Chinese restaurant called Wok and Roll, on H Street in Washington. (Laughter) And it's not completely gratuitous, because "wok" and "roll" -- Chinese food and Japanese foods, so it kind of works out.
Jennifer 8. Lee: Who was General Tso? and other mysteries of

More examples

  • The film’s gratuitous violence added nothing to the story.
  • His remark was a gratuitous attack on someone uninvolved.
  • She objected to the gratuitous detail in the report.

Forms

gratuitous

Similar words

unnecessary
Unnecessary is not needed; gratuitous can also suggest being unjustified or offensively uncalled-for.
unwarranted
Unwarranted lacks justification; gratuitous can emphasize an unnecessary addition, attack, or offense.