Her pushy attitude during the negotiation made everyone in the room uncomfortable.

pushy 是形容词，由动词 push（推、推动）加上后缀 -y 构成，表示"爱推挤的、强求的"，引申为"咄咄逼人的、爱出风头的"。这个后缀常把动词变成形容词，表示"具有...特性的"。