Synonyms of defensive

2 Syllables
guarding, balking, thwarting, checking, foiling, uptight
3 Syllables
preemptive, custodial, arresting, opposed, opposing, defending, withstanding, protecting, frustrating, averting
4 Syllables
interrupting, safeguarding, preclusive, resistive, forestalling, preventive, protective
5 Syllables
oppositional, conservative, preservative, conservational