heterogeneous

mastery
UK /ˌhɛt.(ə.)ɹəˈd͡ʒiː.nɪəs/ US /ˌhɛt.(ə.)ɹəˈd͡ʒiː.ni.əs/adj

card 1 of 10 · fill in the blank

With a vague curiosity I began to trace the outline of some of the _____ impressions.