Antonyms of bland :
pungent, stimulating, undiplomatic, tasty, exquisite, fierce, intense, powerful, severe, forceful, forcible, savage, violent, roughened, rugged, strong, abrading, irritating, roughening, grim, gruff, rude, stiff, heavy-handed, oppressive, pitiless, tyrannical, abrasive, caustic, coarse, hard, harsh, rough, scathing, stern, ungentle.
Examples of usage:
" I can imagine how Mr. Bland would look if he heard you," she said. "The Hidden Places", Bertrand W. Sinclair.
The manÃ¢â‚¬â„¢ s face grew bland with satisfaction. "Marcia Schuyler", Grace Livingston Hill Lutz.
Her eyes, unaware in their bland complacency, had followed his and rested upon her room. "The Nest, The White Pagoda, The Suicide, A Forsaken Temple, Miss Jones and The Masterpiece", Anne Douglas Sedgwick.