Missing letters

T _ _ N_ _ R       loud rumbling noise that follows lightning

W _ _R _             tired

YE_ _ N               longing 

D_ S_ _E              wish

L_ _S_ _E           relaxed/spare time

F_ A_ L               weak

D_EA_ _             dull, boring

A_ _Q_A_E        enough

_ _L_ _E_ _TE   on purpose/intentional

D_ _E_ A_E       assign