- 不分昼夜 bùfēnzhòuyè round-the-clockday and night; continuously without distinguishing between daytime and nighttime
- 不分青红皂白 bùfēnqīnghóngzàobái indiscriminatenot distinguishing between right and wrong or acting without regard for the facts
- 不分彼此 bùfēnbǐcǐ intimateto be on very close terms, treating each other with the familiarity of a single unit or family
- 不分胜负 bùfēnshèngfù tieunable to determine a winner and a loser; to be evenly matched or end in a draw
- 是非不分 shìfēibùfēn undiscerningunable to distinguish right and wrong
- 黑白不分 hēibáibùfēn indiscriminatingunable to distinguish right from wrong
- 不分皂白 bùfēnzàobái indiscriminatenot to distinguish between right and wrong
- 不分轩轾 bùfēnxuānzhì equalequally matched in quality, skill, or status; showing no significant difference in excellence
- 不分胜败 bùfēnshèngbài drawunable to distinguish a winner; to result in a draw
- 不分情由 bùfēnqíngyóu indiscriminateindiscriminate; without regard to the circumstances
- 不分上下 bùfēnshàngxià evenly matchedat par with each other; not to know one's place
- 不分高下 bùfēngāoxià evenly matchedto be equal in quality, skill, or strength with no clear superior or winner
- 四体不勤，五谷不分 sìtǐbùqín, wǔgǔbùfēn lazy and ignorantTo neither engage in physical labor nor be able to distinguish various grains; used to describe a parasitic life of ease.
- 不分伯仲 bùfēnbózhòng equally matchedTo be of equal caliber, excellence, or skill, making it difficult to distinguish which is superior.
- 不分系 bùfēnxì undeclared majorto enroll without declaring one's major or department (in one's first year(s) of university)
