noun, na-adjective
high morale; heightened fighting spirit
Describes a state where morale or fighting spirit is very high. Often used in military, sports, or organizational contexts.
試合前の選手たちは士気旺盛だ。
The players' morale is high before the match.
士気旺盛なチームはどんな困難にも立ち向かえる。
A team with high morale can face any difficulty.
Compound of 士気 (morale, fighting spirit) and 旺盛 (vigorous, abundant).