KEY: Operose.
SYN: Onerous, laborious, burdensome, tedious, wearisome, toilsome.
ANT: Light, unburdensome, stimulating, refreshing.

• Ideal
• ideality
• Identical
• Identity
• Identity
• Idiocy
• Idiom
• idiosyncracy
• Idiot
• Idle
• Idolize
• Ignite, [See KINDLE]
• Ignoble
• Ignominious
• Ignominy
• Ignoramus
• Ignorance, [See KNOWLEDGE]
• Ignorant
• Ignore
• Iicence, benignity, #N/A
• I_ii_t_rust
• Ijore, [See LEARNING]
• I_lit_\viue
• Ill-bred
• Illegal, [See LEGAL]