Entry 2 senses · 2 variants Webster, 1913 Obstructive /əb-strŭk'-tĭv/ · Ob·struct·ive · IPA /əbˈstɹʌk.tɪv/ a. n. 01 a. Tending to obstruct; presenting obstacles; hindering; causing impediment. 1. Tending to obstruct; presenting obstacles; hindering; causing impediment. 02 n. An obstructive person or thing. 1. An obstructive person or thing.