Unsightly; unbecoming or disgraceful — something that looks bad or causes embarrassment because of its appearance or behavior.
公の場であんな見苦しい言い訳をするべきではない。
You shouldn't make such a disgraceful excuse in public.
見苦しい争いはやめて、冷静に話し合おう。
Stop that ugly quarrel and let's talk calmly.
年齢のせいにするのは見苦しい態度だ。
Blaming your age is an unbecoming attitude.