The word is spelled “complicated.” It’s pronounced with three syllables: com- pli-cat-ed. Details you might find helpful

• Spelling: complicated
• Pronunciation: /ˈkɒm.plɪ.keɪ.tɪd/ in British English or /ˈkɑːm.plə.keɪ.tɪd/ in American English
• Part of speech: adjective (also the past tense of complicate as a verb in rare cases)
• Common usage: describes something with many parts or steps, or something hard to understand

If you’d like, I can show you example sentences or break down the pronunciation further with phonetic cues.