more potent

compelling dominant dynamic great impressive influential persuasive robust strong useful vigorous

stiff

almighty authoritative ball of fire cogent commanding convincing efficacious forcible full-bodied go-getter gutsy lusty mighty powerhouse puissant punchy spanking sturdy telling trenchant

inactive ineffective ineffectual infirm insignificant soft unhealthy unimportant weak

disabled fragile helpless impotent incapable