unaccounted

adj [pred 作表语] ~ for (a) not included in an account, a tally, etc 未包括在某数目、 帐目等中: One passenger is still unaccounted for. 仍有一个旅客未在其中. (b) not explained 未予解释的; 未加说明的: His disappearance is unaccounted for. 他失踪原因不明.

umbra, umbrage, umbrella, umlaut, umpire, umpteen, umpteenth, un, un-, un-American, unabashed, unabated, unable, unabridged, unacceptable, unacceptably, unaccommodating, unaccompanied, unaccountable, unaccountably, unaccustomed, unacknowledged, unadopted, unadulterated, unaffected, unaffordable, unafraid, unaided, unalloyed, unalterable, unaltered, unambiguous, unanimity, unanimous, unanimously, unannounced, unanswerable, unanswered, unanticipated, unappreciated,