complicate
verb
[VN] to make sth more difficult to do, understand or deal with:
I do not wish to complicate the task more than is necessary. To complicate matters further, there will be no transport available till 8 o'clock. The issue is complicated by the fact that a vital document is missing.

▼ Từ liên quan / Related words

• Từ trái nghĩa / Antonyms: simplify  
• Từ đồng nghĩa / Synonyms: refine   rarify   elaborate   perplex