Adjective
Archaic form of powerful.
Misspelling of powerful.
Source: en.wiktionary.orgAn Ambitious woman shewes her selfe to bee a troublesome disturber of the world, powerfull to make smale things great, and great monstrous. Thomas Overbury
My point is I like the Open Source iniciative a lot (is free, is fun, and is very powerfull, under a good review), but to have big company behind my back to inform me about new bugs, new fixs, and keep me informed is a good thing too. Source: Internet
PDF View + Automation are very powerfull plugins. Source: Internet
When you level your rooms up all the way they bring more powerfull creatures. Source: Internet