can't make the grade (adjective) unable: not having talent, skill
Sinonime: agonize, be sad, bemoan, bewail, carry on, cry a river, deplore, eat heart out,
grieve,
groan, hang crepe, lament,
moan,
mourn, regret, sing the blues,
sob,
take on*, weep
Antonime: be happy, be joyful,
delight,
relieve