Adjectives formed from nouns (-al) (-ous) (-ful/-less)
Environment -> environmental/ commerce -> commercial
Courageous/adventurous/ fabulous/ disastrous
Meaningful/meaningless// harmful/harmless
Adjectives formed from verbs (-able/ -ive)
Create -> creative
Favour -> favourable/ noticeable/ disposable (desechable)
Drilled – perforado
Flawless – perfecto
Subtle – sutil
Sleek – pulcro
Unforeseen – imprevisto (foresee – prever)