気鋭|きえいkiei[0]heiban (flat)

1. no-adjective, na-adjectivespirited; energetic

• RelatedエネルギッシュCasualColloquial loanword for someone bursting with energy; highlights exuberant vitality, while 「気鋭」 stresses a keen, cutting drive.
• Related活発かっぱつNeutralLively and active, as in 「活発な議論」; stresses brisk movement and a buzzing atmosphere rather than keenness or edge.
• Related元気げんきNeutralEveryday word for good spirits and good health; carries no sense of sharpness or edge.
• Related積極的せっきょくてきNeutralProactive and forward-leaning; stresses a positive attitude toward doing things, with no nuance of keenness or edge.
• Related能動的のうどうてきNeutralActive as opposed to passive; stresses acting on one's own initiative, a technical contrast rather than keenness.
• Related精力的せいりょくてきNeutralEnergetic and untiring; stresses lasting stamina rather than the sharp edge of 「気鋭」, which usually describes promising newcomers.
• Related活動的かつどうてきNeutralDescribes someone active and always on the go; stresses capacity for action, not the keen spirit of 「気鋭」.
• Related進取的しんしゅてきNeutralEnterprising; stresses the courage to take on new things, not the sharpness of 「気鋭」.
• Related行動的こうどうてきNeutralA doer, someone inclined to act; stresses putting plans into action rather than keen spirit.

Use 「気鋭」 for someone brimming with keen, youthful drive — typically a newcomer, as in 「新進気鋭の作家」. For sheer stamina say 「精力的」, for a proactive attitude 「積極的」, for an enterprising spirit 「進取的」; the rest cover liveliness, health or action.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 意気込いきごみが盛さかんで鋭するどいこと。また、そのようなさま。