Synonyms of one-dimensional

1 Syllable

slight, flash, shoal, glib

2 Syllables

silly, warped, skin-deep, outward, quick-fix, lightweight, seeming, flimsy, trivial, casual, shallow, partial, hasty, depthless, slapdash, empty, sketchy, hurried, passing, nodding

3 Syllables

frivolous, general, ignorant, apparent, smattery, external, half-baked, cursory, cosmetic, surface, exterior, summary, evident

4 Syllables

perfunctory, ostensible, desultory, peripheral, uncritical, superficial

5 Syllables

inattentive