Collins Chinese Dictionary Plus (3rd edition), 2011:
decisive [dɪˈsaɪsɪv]
adj
1
[+ battle, phase] 决(決)定性的 juédìngxìng de
2
[+ person] 果断(斷)的 guǒduàn de
3
[+ manner, reply] 坚(堅)定果断(斷)的 jiāndìng guǒduàn de
在这些条目还发现'decisive'：
在英文解释里：
acid test
- at a crossroads
- bashing
- conclusive
- coup de grace
- critical juncture
- crossroad
- crucial
- crunch
- crunch time
- crushing
- crux
- definitive
- determinant
- determining
- emphatic
- finish
- judgment day
- litmus test
- open question
- peremptory
- remain firm
- rout
- showdown
- trouncer
- turning point
中文：