Truth,Lessen,Common place (Synonym Series 4)

Truthful

Veracity
Verisimilitude
Rectitude
Fidelity
Probity

Lessen

Alleviate
Mitigate
Abate
Mollify
Appease
Remit

Common place Ordinary and Unoriginal

Banal
Trite
Hackneyed
Quotidian
Plebeian
Pedestrian