lassitude /lasˈi-tūd/

1. Faintness
2. Weakness
3. Weariness
4. Languor

• unaffected
• unaffectedly
• unaffectedness
• unaffectednesses
• unaffecting
• unaffiliated
• unafraid
• unagreeable
• unaidable
• unaided
• unaimed
• unaired
• unaking
• unalienable
• unalienably
• unaligned
• unalike
• unalist
• unalists
• unalive
• unallayed
• unallied
• unallotted
• unallowable
• unalloyed