jovial /jōˈvi-əl/

1. Joyous
2. Full of jollity and geniality
3. (with cap) of the god or planet or influenced by Jupiter

• weak forces
• weak-handed
• weak-headed
• weak-hearted
• weak-hinged
• weak interaction
• weak interactions
• weakish
• weak-kneed
• weak-kneedly
• weaklier
• weakliest
• weakliness
• weaklinesses
• weakling
• weaklings
• weakly
• weak-minded
• weak-mindedly
• weak-mindedness
• weak moment
• weak moments
• weakness
• weaknesses
• weak point