adjective. Weighted down, loaded sufficiently to make slow.

verb. Simple past tense and past participle of encumber.

adjective. loaded to excess or impeded by a heavy load

"The other $500 billion is "encumbered" -- that's a nice way of saying that instead of being invested in "safe" ..."

unencumbered  

burdened  clogged  heavy-laden  involved  loaded down  

lumbard  numbered  outnumbered  unencumbered  

burdened  burdened with debt  charged  cumbered  deep in debt