flighty

• 形容人反复无常、不可靠，或情绪和兴趣容易突然改变。

Describes a person who is fickle, unreliable, or prone to sudden changes of mood or interest.

1. Unreliable or changeableB2informal

   Tending to change moods, interests, or loyalties quickly; not serious or dependable.

   善变的

   • She's a bit flighty and often changes her mind about plans.
   • He's too flighty to hold down a steady job.
   • Her flighty behavior made it hard for friends to rely on her.

   同义词capriciouschangeableerraticfickleinconstantmercurialunstablevolatilewhimsical

   反义词constantdependabledevotedearnestfaithfulreliableserioussoberstablesteadfast

2. Frivolous or sillyB2informal

   Lacking seriousness or depth; often used to describe someone who is easily distracted or whimsical.

   轻浮的

   • Don't be so flighty; focus on the task at hand.
   • His flighty comments during the meeting annoyed the boss.
   • She dismissed his ideas as flighty and impractical.

   同义词featherbrainedfrivolousgiddylight-mindedscatterbrainedsillywhimsical

   反义词earnestgraveserioussobersolemnstablesteadfastthoughtfulweighty