1. superlative form of itchy; causing or feeling the most irritating sensation that makes one want to scratch

Examples

• This wool sweater is the itchiest one I own.
• The poison ivy rash was at its itchiest stage yesterday.
• Of all the fabrics, burlap is probably the itchiest.
• My mosquito bites are always itchiest in the evening.
• The dry winter air makes my skin feel itchiest.
• This is the itchiest spot on my back that I can’t reach.