adverb + (adj.)insignificant apparently, commercially, comparatively, completely, fairly, from, historically, means, militarily, numerically, politically, rather, relatively, scarcely

(adj.)insignificant + adverb hence, nevertheless, overall

(adj.)insignificant + noun accomplishment, amount, comparison, contribution, creature, detail, effect, error, fraction, fringe, gain, incident, interaction, minority, percentage, phenomenon, pollution, risk, sphere, sum