Common words that rhyme with pleasant include unpleasant, conversant, impuissant, instant, significant, brilliant, indignant, insignificant, extant, slant, repentant, gallant, irradiant, flamboyant and exuberant.
The weather today is quite unpleasant.
The smell triggered instant disgust.
A significant difference is evident.
The court issued a warrant for his absconding.
Everyone praised her brilliant performance.
His comment seemed insignificant in the grand scheme.