無死 is read as むし (mushi) and means no outs.
むし
mushi
むしまんるい
bases are loaded with no outs
むだじに
dying in vain
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