snub
SNUBverbMeaning to ignore or treat coldly on purpose
Memory hook a SNUB nose stuck in the air. Jonah waves and calls, “Hi, Maya!” but she sticks her nose in the air and walks right past him: she snubs him.
Lila felt hurt when her old friend snubbed her at the party.
In context The new student greeted everyone warmly, so he was puzzled when the team captain snubbed him, turning away without a word.
Similar ignore, cold-shoulder, rebuff, slight
Opposite greet, welcome