Following are all the underwing like words, in the list below.
COVERTS
100% like underwing
UPPERWING
100% like underwing
TERTIALS
100% like underwing
FOREWING
100% like underwing
SUPERCILIUM
100% like underwing
UNDERTAIL
100% like underwing
HINDWING
100% like underwing
HINDWINGS
100% like underwing
FOREWINGS
100% like underwing
RUFOUS
100% like underwing
FULVOUS
100% like underwing
UNSTREAKED
100% like underwing
CLEARWING
100% like underwing
WINGLET
100% like underwing
UPPERSIDE
100% like underwing
TAILPLANE
100% like underwing
FUSCOUS
100% like underwing
PLUMAGE
100% like underwing
FUSELAGE
100% like underwing
REDSTART
100% like underwing
UPPERPARTS
100% like underwing
UNDERPARTS
100% like underwing
WINGTIP
100% like underwing
PRONOTAL
100% like underwing
ALULA
100% like underwing
TERTIAL
100% like underwing
EXUVIA
100% like underwing
COWLINGS
100% like underwing
REMIGES
100% like underwing
PRONOTUM
100% like underwing
EMPENNAGE
100% like underwing
UNDERBODY
100% like underwing
SCUTELLUM
100% like underwing
GARGANEY
100% like underwing
SPONSON
100% like underwing
HOVERFLY
100% like underwing
OCELLI
100% like underwing
COWLING
100% like underwing
SCAPULARS
100% like underwing
BUTEO
100% like underwing
TARSI
100% like underwing
TAILPLANES
100% like underwing
CONCOLOROUS
100% like underwing
VENTRAL
100% like underwing
PLUMAGED
100% like underwing
PLUMBEOUS
100% like underwing
WING
100% like underwing
HAIRSTREAK
100% like underwing
STRAKES
100% like underwing
WINGLETS
100% like underwing
SCOTER
100% like underwing
OLIVACEOUS
100% like underwing
EYESPOTS
100% like underwing
FOREBODY
100% like underwing
NOSECONE
100% like underwing
BEAK
100% like underwing
WINGLIKE
100% like underwing
AIRFRAME
100% like underwing
UNDERCARRIAGE
100% like underwing
PLUMAGES
100% like underwing
MELANIC
100% like underwing
WHEATEAR
100% like underwing
WHEATEARS
100% like underwing
VENTRALS
100% like underwing
BICOLOURED
100% like underwing
BIRDWING
100% like underwing
RADOME
100% like underwing
TERGITE
100% like underwing
SWALLOWTAIL
100% like underwing
TERGAL
100% like underwing
ELYTRA
100% like underwing
BUTEOS
100% like underwing
SWALLOWTAILS
100% like underwing
TACHINID
100% like underwing
SANDERLING
100% like underwing
OCELLATED
100% like underwing
STRAKE
100% like underwing
FUSELAGES
100% like underwing
GOOSANDER
100% like underwing
PICEOUS
100% like underwing
PROTHORAX
100% like underwing
ELYTRON
100% like underwing
PIPITS
100% like underwing
TAILHOOK
100% like underwing
DOWITCHER
100% like underwing
COLOURATION
100% like underwing
UNDERSLUNG
100% like underwing
BLACKISH
100% like underwing
TAIL
100% like underwing
WHITISH
100% like underwing
DAMSELFLY
100% like underwing
SHRIKE
100% like underwing
TENERAL
100% like underwing
TAILFIN
100% like underwing
AIRCRAFT
100% like underwing
TROPICBIRD
100% like underwing
PYGIDIUM
100% like underwing
REDSTARTS
100% like underwing
ALCID
100% like underwing
RUMPED
100% like underwing
