stealth adj.

MLBではwinter meetingが熱気をおびてきました。the NY Yankeesはそれまでさしたる動きは見せませんでしたが、ここにきて中島選手獲得へ動きはじめました。stealthはステルス戦闘機からきたものでしょうが、形容詞で使われているので要チェックです。（Yori-money）
MLB Winter Meetings 2011: Yankees Win Bidding Rights for Hiroyuki Nakajima
By Doug Rush (Featured Columnist) on December 7, 2011 1,074 reads 12
Going into Wednesday, the New York Yankees winter had been very quiet. At the baseball winter meetings in Dallas, Yankees GM Brian Cashman had not been very active. However, it looks like he's been very stealth in his move-making.
http://bleacherreport.com/articles/972972-mlb-winter-meetings-2011-yankees-win-bidding-rights-for-hiroyuki-nakajima