-ium /-i-əm/

1. Forming nouns denoting: a metallic element, as in plutonium
2. A group forming a positive ion, as in ammonium
3. A biological structure, as in conidium

• ungrateful
• ungratefully
• ungratefulness
• ungratefulnesses
• ungratified
• ungravly
• ungrazed
• ungreen
• ungroomed
• unground
• ungrounded
• ungroundedly
• ungroundedness
• ungroundednesses
• ungrown
• ungrudged
• ungrudging
• ungrudgingly
• ungual
• unguard
• unguarded
• unguardedly
• unguardedness
• unguardednesses
• unguarding