na-adjective, noun
excited; hyped; enthusiastic
Wasei-eigo from English 'high tension'; describes a person's elevated, energetic, or excited state. Often used in casual conversation. Contrast with ローテンション (low tension, down).
from English high tension
彼は今日すごくハイテンションだね。
He's really hyped up today, isn't he?
ハイテンションな音楽で盛り上がろう。
Let's get pumped up with some high-energy music.
noun-modifying (irregular)
high-tensile
Technical term used prenominally for materials, especially steel, with high tensile strength. Not the common wasei-eigo sense.
See also: ハイテン
この橋にはハイテンション鋼が使われている。
High-tensile steel is used in this bridge.
noun-modifying (irregular)
high-voltage; high-tension
Rare technical term in electrical engineering for high-voltage circuits or currents. Not used in everyday language.
ハイテンション回路の設計には注意が必要だ。
Care is needed when designing high-voltage circuits.