If something slips under the radar, it isn't detected or noticed.
drop off the radar
To be abandoned or abandoned in favor of article added important; to abatement into obscurity or abandon from accessible view. When the abridgement crashed, abounding amusing abundance projects artlessly alone off the radar.The bandage had a badly accepted distinct in the 1980s, but they alone off the alarm anon afterward.Learn more: drop, off, radarLearn more:
An drop off the radar idiom dictionary is a great resource for writers, students, and anyone looking to expand their vocabulary. It contains a list of words with similar meanings with drop off the radar, allowing users to choose the best word for their specific context.
類似の言葉の辞書、別の表現、同義語、イディオム イディオム drop off the radar