おろそか (orosoka) Japanese meaning: negligent

おろそか (orosoka) Japanese meaning: negligent | Kotomora

Kanji

いい加か減げんN2
いい加減 describes a halfhearted, sloppy attitude toward a task, while おろそか specifically points to a lack of proper care or attention, often paired with 〜をおろそかにする.
ぞんざいN1
ぞんざい emphasizes rough, disrespectful handling (of people or objects), whereas おろそか focuses on neglecting duties or responsibilities.
怠おこたるN2
怠る is a verb meaning to neglect a duty, while おろそか is an adjectival noun used in the set phrase 〜をおろそかにする to describe the same state of carelessness.
なおざりN1
おろそか and なおざり both mean neglecting something, but なおざり suggests a more deliberate, conscious disregard while おろそか often results from mere carelessness or inattention.
おろか
おろそか is the modern standard word for 'negligent/careless', while 疎か（おろか）in that sense is archaic and now rarely used.

丁てい寧ねいN4
丁寧 describes careful, thorough attention to something, the opposite of おろそか's careless neglect.
行いき届とどくN1
疎か describes care or duties being neglected or done carelessly, the opposite of 行き届く's sense of nothing being overlooked.

おろか
疎か read as おろか means 'let alone' (used in 〜はおろか), a completely different word from おろそか, which means negligent or careless, despite sharing the same kanji.
愚おろかN1
疎か (おろそか, 'negligent, careless') looks and sounds very similar to 愚か (おろか, 'foolish') but describes neglecting something rather than being unwise.

おろそかUsage86%
Usually written in kana; the kanji form 疎か is rare and may not be recognized by all readers.
疎おろそかUsage14%
Kanji form is uncommon; learners should prefer the kana spelling.

The origin is uncertain; the kanji 疎 means 'neglect' or 'distant', and か is a suffix forming adjectival nouns.