無位 is read as むい (mui) and means without rank.
むい
mui
むいむかん
having no special rank or title
むせんほういそくていき
radio direction finder
むじん
shorthandedness
むちゃ
rash
むりやり
forcibly
むり
impossible
むりょう
free (of charge)
ぶじ
good health
むしょく
without an occupation
むごん
silence (not speaking)
むせん
radio (communication)
むよう
unnecessary