| LIGHTFUL | • lightful adj. (Poetic) Full of light; bright. • lightful adj. Light; cheerful. • LIGHTFUL adj. brightly illuminated. |
| MIGHTFUL | • mightful adj. (Now literary, archaic) Mighty, powerful. • MIGHTFUL adj. (Shakespeare) mighty. |
| RIGHTFUL | • rightful adj. By right; by law. • RIGHTFUL adj. just and proper. |
| FRIGHTFUL | • frightful adj. (Obsolete) Full of fright, whether. • frightful adj. Full of something causing fright, whether. • frightful adv. (Dialect) Frightfully; very. |
| PLIGHTFUL | • plightful adj. Full of risk or danger; risky; dangerous; perilous. • plightful adj. Full of plight; plighted; pledged; devoted. • plightful adj. Indicating plight; dire; grim; grievous. |
| DELIGHTFUL | • delightful adj. Pleasant; pleasing, bringing enjoyment, satisfaction, or pleasure. • DELIGHTFUL adj. full of delight. |
| INSIGHTFUL | • insightful adj. Possessing insight. • INSIGHTFUL adj. exhibiting or characterized by insight. |
| SPRIGHTFUL | • sprightful adj. Sprightly; spirited; lively; animated. • SPRIGHTFUL adj. (obsolete) full of spirit or of life. |
| THOUGHTFUL | • thoughtful adj. Demonstrating thought or careful consideration. • thoughtful adj. Demonstrating kindness or consideration for others. • THOUGHTFUL adj. absorbed in thought. |
| UNRIGHTFUL | • unrightful adj. Not rightful. • UNRIGHTFUL adj. not rightful. |
| AFFRIGHTFUL | • affrightful adj. (Obsolete) frightful. • AFFRIGHTFUL adj. (archaic) frightful. |
| FORESIGHTFUL | • foresightful adj. Having, exercising, or characterised by foresight; forward-looking; prudent. • FORESIGHTFUL adj. full of foresight. |
| UNDELIGHTFUL | • undelightful adj. Not delightful. • UNDELIGHTFUL adj. not delightful. |
| UNTHOUGHTFUL | • unthoughtful adj. Inconsiderate of other’s feelings. • unthoughtful adj. Unplanned or unthinking. • UNTHOUGHTFUL adj. not thoughtful. |
| FORETHOUGHTFUL | • forethoughtful adj. Having or full of forethought; provident; proactive; visionary. • FORETHOUGHTFUL adj. full of forethought. |