1. most inclined to stick or adhere closely to something
Usage: superlative form of clingy
2. most emotionally dependent or possessive in relationships
Usage: superlative form of clingy; informal

Examples

• This is the clingiest fabric I’ve ever worked with.
• The plastic wrap was the clingiest material in the kitchen.
• She became the clingiest person in the group after the breakup.
• Of all his girlfriends, she was the clingiest.
• The clingiest vines wrapped around the entire fence.
• He’s the clingiest child when his parents try to leave.