In a way that attaches no conditions — doing or giving something without asking for anything back and without any 'only if' hidden inside. The adverb of *unconditional*, so it modifies verbs: *love someone unconditionally*, *surrender unconditionally*, *accept unconditionally*, *support someone unconditionally*, *release a prisoner unconditionally*. The same two worlds as the adjective. Warm and personal: *she loves her son unconditionally* — whatever he does, the love stays. Cold and legal or political: *the army surrendered unconditionally* — they gave up and were promised nothing in return. It also shows up in careful business writing: *the money will be refunded unconditionally*, meaning you don't have to prove anything or meet any rule to get it back. In conversation, learners are more likely to hear *no matter what* ("I'll support you no matter what") — *unconditionally* is the more formal, more written way of saying it.