[ zhìdàcáishū ] have great ambition but little talent; have grandiose aims but puny abilities; ambitious but incompetent; have ability unequal to the great task one sets oneself; have capacities not commensurate with one's vaulting ambitions; have high aspirations but little ability; have high ambition [aspirations] but no real ability; high in aim but low-rate in execution; such noble aspirations call for abilities which he does not have
Example Sentences:
1.
Zeal without knowledge is a runaway horse 热心有馀,知识不足。志大才疏犹如脱?之马。
2.
Mr . smart considers himself the smartest man of hong kong . to this assessment , his mother takes strong exception . when he comes home from a seafaring job , he is angered by the fact his mother has rented out his room to a teacher 潇酒先生志大才疏,航海三年回港,另觅生计,归家发现其母已将其居室租与教员黄少白,大怒,其妹从中调停,先生与少白乃杯酒释嫌。