直向[hitamuki] earnest
安直[anchoku] inexpensive
一直[icchoku] lining out to first base
一直線[icchokusen] straight line
鉛直[enchoku] perpendicular

下駄直し[getanaoshi] repairing clogs
開き直る[hirakinaoru] to become defiant
気を取り直す[kiwotorinaosu] to completely rethink
急転直下[kyuutenchokka] suddenly and precipitately
居直る[inaoru] to sit up properly straight

圧観[akkan] highlight
偉観[ikan] magnificent sight
一面観[ichimenkan] one-sided view
厭世観[enseikan] pessimistic view of life
厭世悲観者[enseihikansha] pessimist

価値観[kachikan] sense of values
外観[gaikan] appearance
概観[gaikan] general view
楽観[rakkan] optimism
楽観的[rakkanteki] optimistic