1. Seizing the attention
   - eye-catching 
2. Likely to attract attention
   - catchy

See also: appealing, conspicuous

• harmonious
• harmoniously
• harmoniousness
• harmonisable
• harmonisation
• harmonise
• harmonised
• harmoniser
• harmonist
• harmonium
• harmonizable
• harmonization
• harmonize
• harmonized
• harmonizer
• harmony
• Harmsworth
• harness
• harness horse
• harness race
• harness racing
• harnessed
• harnessed antelope
• Harold Clayton Lloyd
• Harold Clayton Urey