1. Subject to a proviso
   "a provisory clause" 
2. Under terms not final or fully worked out or agreed upon
   - probationary, provisional, provisionary, tentative

See also: conditional

• heterogeneity
• heterogeneous
• heterogeneousness
• heterogenesis
• heterogenous
• heterograft
• heteroicous
• Heterokontae
• Heterokontophyta
• heterologic
• heterological
• heterologous
• heterology
• Heteromeles
• Heteromeles arbutifolia
• heteromerous
• heterometabolic
• heterometabolism
• heterometabolous
• heterometaboly
• heteromorphic
• Heteromyidae
• heteronomous
• heteronomy
• heteronym