lost

1 lost
1 lost
Britannica Dictionary definition of LOST
past participle of lose
2 lost /ˈlɑːst/ adjective
2 lost
/ˈlɑːst/
adjective
Britannica Dictionary definition of LOST
1 
: unable to be found
— see also long-lost
2 
: not knowing where you are or how to get to where you want to go : unable to find your way
3 
a  : no longer held, owned, or possessed
b  : no longer known
c  : no longer available
4 
a  : not won : not possible to win
b  : not capable of succeeding
5 
a  not used before a noun, [more lost; most lost] : lacking confidence and feeling unsure of what to do
b  : very unhappy
6 
not used before a noun : so interested in something that you do not notice other things — often + in

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

— see hesitate

lost for words

chiefly British
: unable to think of anything to say

lost in the shuffle

— see 2shuffle

lost on

: not appreciated or understood by (someone)

no love lost, very little love lost

— see 1love