burdensome/ʹbuhd(ə)ns(ə)m/ adj

• adapter
• adaptogen
• adaxial
• ADC
• ADD
• add
• addax
• addend
• addendum
• adder
• adder's-tongue
• addict
• Addison's disease
• addition
• additional
• additional member system
• additive
• addle
• add-on
• add/put in one's twopenn'orth
• address
• addressable
• adduce
• adduct
• add up