7
obstructionist
5
impediment
5
obstruction
5
obstructor
5
thwarter
4
impedimenta
4
resister
2
adversary
2
antagonist
2
blockage
2
deterrent
2
handicap
2
hindrance
2
obstacle
1
cramping
1
filibuster
1
negativist
1
opponent
1
opposer
0
balk
<123>
11 years ago|1.1k views|share |citing 
APASmart Define. (2015). obstructer thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/obstructer/thesaurus/synonyms
ChicagoSmart Define. 2015. "obstructer thesaurus" https://smartdefine.org/obstructer/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, obstructer thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/obstructer/thesaurus/synonyms>.
MLASmart Define. "obstructer thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/obstructer/thesaurus/synonyms>