Related Clues:

• Teasing
• Boring
• Tiresome
• Testing, as one's patience
• Taunts and such
• Hard to bear
• Provoking
• Tough to endure
• Not at all interesting
• Bor-r-r-ring
• Hard to endure
• Stressful
• Taxing
• Hardly fascinating
• Awfully dull