IPA: /ˈriː.zən.ə.bəl/
KK: /ˈrizənəbl/
Fair and sensible; not too extreme or excessive.
It is reasonable to expect that the project will be completed on time.
Reasonable → It is formed from "reason" (from Latin *ratio*, meaning a calculation or reasoning) and "-able" (meaning capable of). The word "reasonable" means capable of being reasoned with or having sound judgment.
Think of 'reason' as the ability to think logically, and '-able' means capable. This helps you remember that 'reasonable' describes someone who is capable of sound judgment.