past participle of lose
adjective
unable to be found
not knowing where you are or how to get to where you want to go :unable to find your way
no longer held, owned, or possessed
no longer known
no longer available
not won
not capable of succeeding
a not used before a noun [more ~; most ~] :lacking confidence and feeling unsure of what to do
very unhappy
not used before a noun :so interested in something that you do not notice other things
get lost
informal :to go away :leave - used in speech as a rude or angry way to tell someone to go away; - see also 2lost 2 (above)
give someone up for lost
to decide that someone cannot be helped or saved
he who hesitates is lost
lost for words
chiefly Brit :unable to think of anything to say
lost in the shuffle
lost on
not appreciated or understood by (someone)
no love lost, very little love lost