いささか

slightly, somewhat

→ 些か
adverb Rare #38,996
slightly, somewhat Often used in formal or literary language; it can also imply 'rather' or 'not a little' depending on context.
JA: その説明にはいささか疑問が残る。
EN: I still have some doubts about that explanation.

雰囲気いささか緊張したものになることがある

The atmosphere can sometimes become somewhat tense.

彼はいささか気難しい

He’s somewhat difficult to deal with.

ここだけの話だが、彼いささか抜けている

Just between us, he's a bit of an airhead.